Cross-section Microscopy Analysis of Farmer's Delight
Transcript of Cross-section Microscopy Analysis of Farmer's Delight
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Cross-section Microscopy Report
Farmer’s Delight Paint Interior Paint Study
Loudon County, Virginia
For: Maral Kalbian, LLC
Architectural Historian
P.O. Box 468
Berryville, VA 22611
Conservator: Susan L. Buck, Ph.D.
303 Griffin Avenue
Williamsburg, VA 23185
Date: November 20, 2014
Purpose:
The goal of this project is to use cross-section microscopy analysis techniques to identify
the paints remaining on protected areas of interior of ca. 1799 Farmer’s Delight. This
paint study is intended to help understand the original interior palette and how selected
interior spaces in the main block of the building were painted over time. Paint
archaeology will help to clarify early interior alterations. Original or early paints will be
color-matched for replication with the help of a colorimeter/microscope.
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Procedures:
The work began with a meeting at the site on August 6 and 7, 2014 with architectural
historians Dennis Pogue and Maral Kalbian to review the potential areas for sampling
and to discuss the goals of the project. It was agreed that because the budget was
limited, a conservative approach would be taken for sampling, with observations on-site
helping to clarify the analysis findings. Floor plans were provided by Kalbian for
reference.
Before sampling the surfaces were first examined at 30X with a monocular microscope
and at 10X with an illuminated loupe to find the most promising sample locations. The
samples were about 200 to 400 microns in size and were removed with a microscalpel
and placed in labeled baggies for transport. When the paint flakes cleaved away from the
wood substrates they were stored in the same baggies so they could be cast together for
analysis.
Before casting, the samples from both site visits were examined at 45X magnification
under a binocular microscope to screen them for duplicates. The samples that retained
the most complete stratigraphies were cast into polyester resin cubes for permanent
mounting. The cubes were ground and polished for cross-section microscopy analysis
and photography. The sample preparation methods and analytical procedures are
described in the reference section of this report.
The cast samples were analyzed with a Nikon Eclipse 80i epi-fluorescence microscope
equipped with an EXFO X-Cite 120 Fluorescence Illumination System fiberoptic halogen
light source and a polarizing light base using SPOT Advanced software (v. 6.1) for digital
image capture and Adobe Photoshop CS for digital image management. Digital images
of the best representative cross-sections are included in this report. Please note that the
colors in the digital images are affected by the variability of color capture printing and do
not accurately represent the actual colors.
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Paint Analysis Results
Farmer’s Delight is part of Robert Carter’s tract, and in 1791 Robert Lane acquired the
property. Dendrochronology analysis by Dan Miles determined that the house was built
in 1799.1 The alterations that can be dated include the 1940 ell at the south end, and the
1940 shed addition which created a connection between the dining room and the kitchen.
The south end of the building, which includes a utility room, was added in 1962.
Selective changes were made to the rooms in the main block, but all six spaces sampled
for this paint study seem to remain remarkably intact, with the exception of several later
door openings which were created to allow access to the ell additions. This study focused
on the paint histories on the interior woodwork, although a few areas of early plaster were
sampled to look for the earliest paint treatments. Two areas of the exterior were also
sampled to search for original paint.
First-floor Paint Findings:
The results of the cross-section microscopy analysis are presented by room, beginning
with the dining room (101), followed by the passage (102) and the parlor (103). The
dining room, passage and parlor were examined and sampled to establish the original
paint treatments and to comparatively date alterations and additions, such as the door in
the dining room leading to the 1940 ell, the corner closet in the southeast corner of the
passage, the door at the west end of the passage, and the window on the north wall of the
north bedroom. Paint archaeology can help relate the first paint layer on added elements
with the full sequence of paints found on original elements.
Dining Room 101
The woodwork in this space is currently painted light blue, and it was possible to see
substantial accumulations of earlier paints when the surfaces were examined with a 10X
hand-held loupe (Dermlite DL100). The plaster was as no promising areas were
identified. Eight samples were taken to establish the paint histories on all the
representative elements – doors, architraves, baseboards, mantel, chair rails – in the
dining room.
North Wall of Dining Room
1 Maral Kalbian, email communication.
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Dining Room Sample Locations
101-1. North wall, left architrave, backband molding, inner molding, about 5’ up.
101-2. North wall door, upper left corner, bottom left panel.
101-3. East wall, north window, left architrave, backband molding.
101-4. East wall, chair rail plinth, below left architrave of north window.
101-5. East wall, baseboard plinth, below left architrave of north window.
101-6. South wall, mantel, cove molding below dentils, left side.
101-7. South wall, trapped original door opening, interior or exterior surface?, in west
corner.
101-8. South wall, right architrave for door opening.
North Wall North Wall Door Architrave
North Wall Door East Wall Window Architrave
101-1
101-2 101-3
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East Wall Chair Rail East Wall Baseboard
South Wall Trapped Door Opening
Woodwork Paint in Room 101.
Comparative cross-section analysis shows that certain elements in the dining room were
originally painted in the same manner as the passage. The north wall door was originally
grain-painted on both sides, with a recognizable sequence of paints consisting of a red-
brown glaze on a yellow base coat and an off-white primer (see sample 101-2). All of the
woodwork in the passage was discovered to have been grained in the same manner, with
the exception of dark brown baseboards. The baseboards in the dining room were
originally dark brown as well (sample 101-5), but the window architraves and chair rails
were originally painted dark gray (samples 101-3 and 101-4). One unusual finding was
that the north wall door architrave was originally painted dark red-brown, like the mantel
(samples 101-1 and 101-6 respectively). This is surprising as interiors of this period were
more often painted in a monochromatic manner.
When the room was repainted in the second generation the mantel and door architraves
were repainted with a glossier dark brown, as were the baseboards. The chair rails and
window architraves were coated with a pigmented varnish, which would have produced a
101-5 101-4
101-7
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glossier, darker gray, and the door was also revarnished. In generation 3 all the first-floor
rooms were painted with the same type of monochromatic gray palette.
The paint history on the architrave for the south wall door opening (sample 101-8) is
more difficult to interpret as the wood substrate is fibrous and disrupted, likely from paint
stripping. The first paint layer on top of the stripped wood can be aligned with the gray
paint in generation 3 in the reconstructed paint history.
Sample 101-7 was taken from the trapped section of the original south wall door opening.
This element now appears quite blackened, and the paint history suggests that it may
have remnants of the same dark brown paint on an off-white primer found in the sample
from the north wall door architrave (101-1) and the mantel (101-6). The reconstructed
paint history for this space is shown in the following chart.
Room 101 Comparative Paint Histories Generation Mantel
101-6
Chair rail
101-4
Window
architrave
101-3
Baseboard
101-5
North door
architrave
101-1
Door
101-2
South door
architrave
101-8
10 - 14 Light
greens
Light
greens
Light greens Light
greens
Light greens Light greens Light greens
9 Green Green Green Green Green Green Green
8 Cream
color
Cream
color
Cream color Cream
color
Cream color Cream color Cream color
7 Cream
color
Cream
color
Cream color Cream
color
Cream color Cream color Cream color
6 Cream
color
Cream
color
Cream color Cream
color
Cream color Cream color Cream color
5 Cream
color
Cream
color
Cream color Cream
color
Cream color Cream color Cream color
4 Light
gray
Light gray Light gray Light gray Light gray Light gray Light gray
3 Gray Gray Gray Gray Gray Gray Gray
2 Dark
brown
Pigmented
varnish
Pigmented
varnish
Dark
brown
Dark brown Pigmented
varnish
Missing
1 Brown Gray Gray Dark
brown
Brown Grained Missing
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Sample 101-1. North wall, left architrave, backband molding, inner molding, about 5’
up.
Visible Light 200X Ultraviolet Light 200X
Sample 101-2. North wall door, upper left corner, bottom left panel.
Visible Light 200X Ultraviolet Light 200X
1. Graining on yellow base coat with off-white
primer
2. Pigmented varnish
3. Gray
1. Dark brown on off-white primer
3. Gray
4. Light gray 5. Tan
6. Cream color
7. Cream color
9. Green
9. Light green
10. Light green
11. Light green
12. Light green
4. Light gray
5. Cream color
6. Cream color
7. Cream color
8. Cream color
9. Green (generation 9 in room 102)
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Sample 101-3. East wall, north window, left architrave, backband molding.
Visible Light 200X Ultraviolet Light 200X
Sample 101-4. East wall, chair rail plinth, below left architrave of north window.
Visible Light 200X Ultraviolet Light 200X
Sample 101-5. East wall, baseboard plinth, below left architrave of north window.
Visible Light 200X Ultraviolet Light 200X
2. Oil-resin varnish
1. Dark gray
Wood
1. Dark gray
2. Oil-resin varnish
Wood
3. Gray
4. Light gray
5. Cream color
6. Cream color
7. Cream color
Shellac sealant
Shellac sealant
Shellac sealant
1. Dark brown
2. Coarse dark brown
3. Black 4. Varnish
5. Cream color
3. Gray
6. Cream color
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Sample 101-6. South wall, mantel, cove molding below dentils, left side.
Visible Light 200X Ultraviolet Light 200X
Sample 101-7. South wall, trapped original door opening, interior or exterior surface?, in
west corner.
Visible Light 200X Ultraviolet Light 200X
Sample 101-8. South wall, right architrave for door opening.
Visible Light 200X Ultraviolet Light 200X
1. Remnants of dark brown on off-white
primer
Wood
1. Dark brown on off-white primer
2. Dark brown (2 layers)
3. Gray
Darkened stripped wood
3. Gray
4. Cream color
4. Cream color
5. Cream color
6. Cream color
9. Green
10-14 Recent green paints
5. Cream color
6. Cream color
7. Cream color
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Entry Hall 102
The primary questions related to this central circulation space are whether the woodwork
for the door opening at the west end of the passage is original, how many paint layers
were applied to the trapped woodwork and wall plaster before the corner closet was
building, when in the paint history the corner closet was installed, and how the paints in
this space relate to the paints in the second-floor passage. Ten samples were taken from
representative areas of woodwork and one sample was taken from the undisturbed plaster
in the corner closet to help answer these questions.
Southeast Corner of Passage West End of Passage
Entry Hall Sample Locations
102-1. South wall, southeast corner, chair rail trapped in corner closet.
102-2. South wall, southeast corner, plaster on lower wall trapped in corner closet.
102-3. South wall, southeast corner, baseboard trapped in corner closet.
102-4. South wall, southeast corner, later corner closet, upper left corner of lower door
opening.
102-5. South wall, southeast corner, peg rail trapped in corner closet.
102-6. Staircase baluster, on north-facing plinth of baluster on seventh step up.
102-7. Door under stair, upper left corner, middle left panel.
102-8. South wall, door architrave under stair, backband molding, left side.
102-9. West wall, door opening, left side of door reveal, about 5’ up. (all paints match
except the moldings above the door)
102-10. North wall, chair rail, northwest corner.
102-11. North wall, base plinth, northwest corner.
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Room 102 Inside Corner Closet Baseboard Inside Corner Closet
Room 102 Corner closet Pegrail Inside Corner Closet
Staircase Elements Door Under Staircase
102-8
102-7
102-2
102-1
102-3
102-4
102-5
102-6
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West Wall Door Reveal Chair rail
Baseboard
Woodwork Paint in Room 102.
The comparative paint evidence consistently shows that the woodwork in this space was
originally grain-painted with a recognizable sequence of paints consisting of a red glaze
layer on top of a yellow base coat and an off-white primer. In most areas the graining
was varnished over after the graining had become darkened and cracked. This evidence
of original graining was found on the trapped chair rail and pegrail (102-1 and 102-5), the
staircase baluster and architrave for the door under the staircase (102-6 and 102-8), and
the reveal for the west wall door (102-9). All the investigations on-site suggests that the
door opening on the west wall is original as all the elements except the door and the
narrow molding above the door opening retain the original graining. The same grain-
painting was found as the original treatment on the woodwork in the second-floor
passage.
There are approximately 12 generations of paint on the woodwork in the passage, and the
trapped woodwork in the corner closet was painted four times before the closet was
constructed. The first paint generation on the closet door is a gray paint that can be
aligned with generation 5 in the paint chronology.
102-10
102-11
102-9
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The comparative evidence also shows that the baseboards were originally painted dark
brown (102-3 and 102-11) and then repainted dark brown a second time before they were
consistently repainted to match the rest of the woodwork.
The paint chronology in the passage is shown in the chart below.
Passage Woodwork Paint Stratigraphy
Generation/Layer Observations 12. Light green
11. Light green
10. Light green
9. Green
8. Cream color
7. Gray
6. Cream color
5. Gray First paint layer on the corner closet
4. Light gray
3. Gray
2. Varnish Baseboards repainted dark brown
1. Uneven dark red glaze Graining became cracked and dirty before
being varnished over
1. Yellow base coat Baseboards were originally dark brown
1. White primer
1. Shellac sealant
Wood
Sample 102-1. South wall, southeast corner, chair rail trapped in corner closet.
Visible Light 200X Ultraviolet Light 200X
Visible Light 200X Substrate Ultraviolet Light 200X
1. Graining on yellow base coat and
off-white primer
2. Varnish
Wood
3. Gray
4. Light gray
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Sample 102-3. South wall, southeast corner, baseboard trapped in corner closet.
Visible Light 200X Ultraviolet Light 200X
Sample 102-4. South wall, southeast corner, later corner closet, upper left corner of
lower door opening.
Visible Light 200X Ultraviolet Light 200X
Sample 102-5. South wall, southeast corner, peg rail trapped in corner closet.
Visible Light 200X Ultraviolet Light 200X
1. Dark brown
3. Gray
4. Light gray
Wood Shellac sealant in the wood
Wood
5. Coarse gray
1. Graining on yellow base coat and
off-white primer
Wood
3. Gray
4. Light gray
2. Dark brown
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Sample 102-6. Staircase baluster, on north-facing plinth of baluster on seventh step up.
Visible Light 200X Ultraviolet Light 200X
Sample 102-7. Door under stair, upper left corner, middle left panel.
Visible Light 200X Ultraviolet Light 200X
3. Gray
4. Light gray
1. Graining on yellow base coat and white primer
2. Varnish
3. Gray
4. Light gray
5. Cream color
6. Tan
7. Tan
8. Cream color
5. Gray
7. Gray
8. Cream color
6. Cream color
9-12
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Sample 102-8. South wall, door architrave under stair, backband molding, left side.
Visible Light 200X Ultraviolet Light 200X
Sample 102-9. West wall, door opening, left side of door reveal, about 5’ up.
Visible Light 200X Ultraviolet Light 200X
1. Graining on yellow base coat and white primer
2. Varnish
3. Gray
4. Light gray
5. Light gray
6. Cream color
7. Light gray
9. Green
1. Graining on yellow base coat and white primer
1. Graining on yellow base coat and white primer
3. Gray
2. Varnish
4. Light gray
5. Gray
6. Cream color
7. Gray
8. Cream color
10-12
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Sample 102-10. North wall, chair rail, northwest corner.
Visible Light 200X Ultraviolet Light 200X
Visible Light 200X Substrate Ultraviolet Light 200x
Sample 102-11. North wall, base plinth, northwest corner.
Visible Light 200X Ultraviolet Light 200X
1. Graining on yellow base coat and white primer
Wood Shellac in the wood
2. Varnish
1. Dark brown
2. Dark brown
3. Gray
4. Light gray
6. Cream color
2. Varnish
3. Gray
4. Light gray
5. Gray
6. Cream color
7. Gray
8. Cream color
9. Green
10. Light green
11. Light green
12. Light green
5. Gray
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Wall Paint in Room 102.
One sample was taken from the early plaster that remains protected within the corner
closet. In this sample the first two translucent white layers are consistent with traditional
white limewashes that have darkened over time. These two chalky coatings are followed
by a thin off-white wall paint and the current gray paint. It is not possible to determine
how long each limewash was exposed before being repainted, but the evidence does
indicate that the walls in the passage were originally matte white or off-white when the
woodwork was grain-painted and the baseboards were dark brown.
Sample 102-2. South wall, southeast corner, plaster on lower wall trapped in corner
closet.
Visible Light 100X Ultraviolet Light 200X
Brown coat
White finish plaster
1. Discolored limewash
2. Discolored limewash 3. Off-white 4. Light gray
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Parlor 103
Nine samples were taken from the woodwork and one was taken from a protected area of
plaster to identify the surviving paints. This is the only room in the main block with
wainscoting.
Parlor Sample Locations
103-1. North wall mantel, reeding above opening, right side.
103-2. North wall mantel, block below reeding, right side,
103-3. West wall, plinth for chair rail, below north window.
103-4. West wall, top of chair rail, just left of north window.
103-5. West wall, wainscoting below north window (graining?)
103-6. West wall, plinth of baseboard below north window.
103-7. West wall, cornice, base molding between the two windows.
103-8. South wall, door architrave, backband molding, left side about 4’ up.
103-9. South wall door, upper left corner of middle left panel.
103-10. West wall, materials overlapped onto top of north window architrave.
Room 103 Mantel West Wall Window
103-4
103-1
103-2
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West Wall Wainscoting Baseboard
West Wall Cornice South Wall Door Architrave
West Wall Plaster
103-10
103-5
103-3
103-6
103-7 103-8
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Woodwork Paint in Room 103.
The evidence in the nine woodwork samples from this room suggests its original palette
was a more complex combination of colors than the passage or dining. The door was
originally grain-painted in the same manner as the adjacent passage (sample 103-9), and
the wainscoting (103-5) and the cap of the chair rail (103-4) seem to have originally been
grain-painted as well. The baseboards were originally the same dark brown as the
baseboards in the passage and dining room (103-6). A distinctive blue paint was found as
the original coating on the mantel (103-1, 103-2), on the chair rail plinth (103-3), and on
the cornice and door architrave (103-7 and 103-8).
So the comparative evidence suggests this room was quite originally colorful with its
grain-painted door, chair rail cap and wainscoting, in combination with a medium blue
cornice, chair rail plinth and architraves, and brown baseboards. In the second generation
it appears the door and wainscoting were re-grained, the baseboards remained dark
brown, and the rest of the woodwork was repainted cream color. In generation 3 the
room was a monochromatic gray, and it appears the room continued to be repainted in a
monochromatic manner up to the most recent paint scheme.
A chart with the comparative paint histories on the different elements is shown below.
Room 103 Comparative Paint Histories Generation Mantel
103-1
103-2
Chair
rail
plinth
103-3
Cap of chair
rail 103-4
Wainscoting
103-5
Baseboard
103-6
Cornice and
door
architrave
103-7
103-8
Door
103-9
10 - 14 Light
greens
9 Green
8 Cream
color
7 Cream
color
6 Cream
color
5 Tan Tan Tan Tan Tan Tan
4 Cream
color
Cream
color
Cream color Cream
color
Cream color Cream color
3 Gray Gray Gray Gray Gray Gray
2 Resinous
black
Cream
color
Grained Dark
brown
Cream color Possible
graining
1 Blue Blue Grained Dark
brown
Blue Grained
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Sample 103-1. North wall mantel, reeding above opening, right side.
Visible Light 200X Ultraviolet Light 200X
Sample 103-2. North wall mantel, block below reeding, right side.
Visible Light 200X Ultraviolet Light 200X
3. Gray
3. Gray
2. Resinous black
2. Resinous black
1. Blue
Wood
4. Cream color
5. Tans
4. Cream color
5. Tan
6. Cream color
7. Cream color
9. Blue-green
8. Cream color
1. Blue remnants
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Sample 103-3. West wall, plinth for chair rail, below north window.
Visible Light 200X Ultraviolet Light 200X
Sample 103-5. West wall, wainscoting below north window.
Visible Light 200X Ultraviolet Light 200X
3. Gray
2. Graining
1. Graining
4. Cream color
5. Tan
6. Cream color
7. Cream color
8. Off-white (2 layers)
9. Blue-green
11-14
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Sample 103-6. West wall, plinth of baseboard below north window.
Visible Light 200X Ultraviolet Light 200X
Sample 103-7. West wall, cornice, base molding between the two windows.
Visible Light 200X Ultraviolet Light 200X
Sample 103-8. South wall, door architrave, backband molding, left side about 4’ up.
Visible Light 200X Ultraviolet Light 200X
Wood Shellac sealant in the wood
1. Dark brown
2. Dark brown 3. Gray
1. Blue paint
2. Cream color
3. Light cream color
1. Blue paint
Wood
2. Cream color
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Sample 103-9. South wall door, upper left corner of middle left panel.
Visible Light 200X Ultraviolet Light 200X
Wall Paint in Room 103.
One sample taken from directly above a window architrave suggests that the walls may
have originally been coated with a matte yellow distemper paint (bound in dilute hide
glue). This is paint that was traditionally used for walls and wallpaper in the eighteenth
century, and it was frequently renewed because it is less durable than oil paints. The
yellow distemper is followed by four more generations of opaque oil paints beginning
with a cream color, and then dull yellow (see sample 103-10 below).
Sample 103-10. West wall, materials overlapped onto top of north window architrave.
Visible Light 200X Ultraviolet Light 200X
1. Remnants of graining 3. Gray
Plaster
1. Yellow distemper
2. Cream color (2 layers)
3. Dull yellow
4. Pale green 5. Off-white
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South Bedroom 201
Six samples were taken from the woodwork in the north bedroom and one sample was
taken from an area that appeared to be early plaster. When the woodwork paints were
examined in situ it was easy to see an early pink paint on the later mantel which also
could be seen on the window and door architraves. The comparative cross-sections show
that this room was repainted somewhat less frequently than the first-floor rooms.
South Bedroom Sample Locations
201-1. North wall, right door architrave, about 4 ½’ up.
201-2. North wall, plaster just above chair rail, left of door.
201-3. North wall, chair rail, just left of door.
201-4. South wall, chair rail at join with mantel, right side.
201-5. South wall mantel, right side, third panel up from bottom, upper left corner –
mantel is a later installation.
201-6. North wall, baseboard right of door.
201-7. West wall, window architrave, north window, left architrave.
North Wall North Wall
201-1
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Room 201 North Wall South Wall
North Wall West Wall
Woodwork Paint in Room 201.
The mantel was identified by Kalbian and Pogue as a later addition, but all the other
woodwork sampled appears to be original. The most complete paint sequence was found
in 201-4 from the chair rail to the right of the mantel. There are nine generations of paint
in this sample, beginning with a cream-colored paint on top of the wood. The second
generation is a distinctly pink paint, and it was found on all the woodwork except the
baseboards which were dark brown (sample 201-6). The first paint layer on the mantel is
this second-generation pink paint (sample 201-5). So the comparative paint stratigraphies
indicate that the room was only painted once before the mantel was installed and all the
woodwork was painted pink with dark brown baseboards. In the third generation a
varnish coating was applied to the woodwork, then in generation 4 the woodwork was
painted a uniform light gray. The door was not sampled, but it was likely grain-painted
on both the bedroom side and the passage side.
The following chart shows the chronology of paints on the woodwork in this room.
201-6
201-7
201-2
201-4
201-5
201-3
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Room 201 Comparative Paint Histories Generation Architraves
201-1, 201-7
Baseboards
201-6
Chair rail
201-3
Mantel
201-5
9 - 11 Whites Whites Whites Whites
8. Blue Blue Blue Blue
7. Light blue Light blue Light blue Light blue
6. Cream color Cream color Cream color Cream color
5. Cream color Cream color Cream color Cream color
4. Light gray Light gray Light gray Missing
3. Varnish Varnish Varnish Missing
2. Pink Pink Pink Pink
1. Cream color Dark brown Cream color Missing
Sample 201-1. North wall, right door architrave, about 4 ½’ up.
Visible Light 200X Ultraviolet Light 200X
Visible Light 200X Ultraviolet Light 200X
2. Pink paint
1. Cream color
Wood
2. Discolored limewash
3. Varnish
4. Light gray (2 layers)
5. Cream color
7. Light blue
8. Blue
9 -11. Whites
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Sample 201-3. North wall, chair rail, just left of door.
Visible Light 200X Ultraviolet Light 200X
Sample 201-4. South wall, chair rail at join with mantel, right side.
Visible Light 200X Ultraviolet Light 200X
Sample 201-5. South wall mantel, right side, third panel up from bottom, upper left
corner – mantel is a later installation.
Visible Light 200X Ultraviolet Light 200X
2. Pink paint
1. Cream color
2. Pink paint
Wood
5. Cream color
2. Pink paint
4. Light gray (2 layers)
5. Cream color
6. Cream color
7. Light blue
8. Blue (2 layers)
9. White
10. White
4. Light gray (2 layers)
5. Cream color
6. Cream color
7. Light blue
8. Blue
9. White
3. Varnish
3. Varnish
11. White
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
30
Sample 201-6. North wall, baseboard right of door.
Visible Light 200X Ultraviolet Light 200X
Sample 201-7. West wall, window architrave, north window, left architrave.
Visible Light 200X Ultraviolet Light 200X
Wall Paint in Room 201.
The evidence in sample 201-2 suggests that the walls in this south bedchamber were
originally coated with a chalky, translucent white limewash, which is now quite
darkened. This was covered over with a second white limewash. The walls were then
repainted with a thin layer of opaque white paint. Generation 4 appears to be another
limewash and generation 5 is a medium yellow oil-bound paint.
Sample 201-2. North wall, plaster just above chair rail, left of door.
Visible Light 200X Ultraviolet Light 200X
2. Dark brown
1. Dark brown
Wood Shellac sealant
1. Cream-colored paint (remnants)
Wood
2. Pink paint
4. Light gray
Plaster
1. Discolored limewash
2. Discolored limewash 3. White paint
4. Discolored limewash
5. Yellow paint
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
31
Second-floor Hall 202
The investigations on-site suggested that the first- and second-floor stairhall elements
were always painted in the same manner. Six samples were taken from representative
areas of woodwork for comparison with the findings on the first floor.
Second-floor Hall Sample Locations
202-1. South wall, chair rail plinth, just right of door opening.
202-2. East wall, lower left corner of transom sash.
202-3. East wall, rail below transom window.
202-4. North wall door architrave, left side about 4 ½’ up.
202-5. North wall door, upper left corner, middle left panel.
202-6. East wall, baseboard left of door.
South Wall Chair Rail East Wall Transom Window
202-1 202-2
202-3
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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North Wall Door East Wall Baseboard
Woodwork Paint in Room 202.
One question posed about the woodwork in the second-floor passage is whether the
transom window on the east wall could be original. Comparative cross-section analysis
shows that all the original woodwork – chair rail, door architraves, doors – were
originally grained in the same manner as the woodwork on the first floor of the passage.
The architrave above the door opening on the east side was also originally grained (see
sample 202-3), but the early paints on the transom window sash do not have graining and
are considerably more disturbed. The original paint on the sash is cream-colored,
followed by dark tan. It is possible the sash was not originally grain-painted, but it is also
possible that this sash was moved from another location and was installed later, possibly
in generation 6, which is the earliest paint that can be aligned with the passage paint
layers.
The comparative paint histories show that the first and second-floor passage were
repainted in the same manner each time. The best example of a complete paint sequence
was found in sample 202-5 from the north wall door. The paint in sample 202-6 from the
east wall begins with the same dark brown observed as first coating on the first-floor
passage baseboards, and the baseboards were painted to match the rest of the woodwork
from generation 3 to the present.
202-4 202-6
202-5
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
33
Sample 202-1. South wall, chair rail plinth, just right of door opening.
Visible Light 200X Ultraviolet Light 200X
Sample 202-2. East wall, lower left corner of transom sash.
Visible Light 200X Ultraviolet Light 200X
Sample 202-3. East wall, rail below transom window.
Visible Light 200X Ultraviolet Light 200X
1. Grain-painting on yellow base coat and white
primer
Wood Shellac sealant in the wood
1. Grain-painting on yellow base coat and white
primer
1. Cream-colored paint on wood
Wood Shellac sealant
2. Varnish
3. Gray
4. Light gray
6. Cream color
8. Green
9. Light green
2. Dark tan paint
6. Cream color
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
34
Sample 202-4. North wall door architrave, left side about 4 ½’ up.
Visible Light 200X Ultraviolet Light 200X
Sample 202-5. North wall door, upper left corner, middle left panel.
Visible Light 200X Ultraviolet Light 200X
3. Gray
4. Light gray
1. Grain-painting on yellow base coat and off-
white primer Shellac sealant in wood Wood
2. Varnish 3. Gray
4. Light gray
5. Gray
6. Cream color
8. Blue-green
9. Light green
10. Light green
12. Light green
11. Light green
5. Gray
6. Cream color
7. Gray
8-12
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
35
Sample 202-6. East wall, baseboard left of door.
Visible Light 200X Ultraviolet Light 200X
5. Gray
3. Gray
1. Dark brown
4. Light gray
6. Cream color
8. Cream color
9-12
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
36
North Bedroom 203
When small excavations were made in the paint on the mantel in the north bedroom it
was obvious at 10X magnification that there is an early, coarsely ground, intensely green
paint on all the mantel elements. The same type of observation helped to locate original
green paint on the architraves and chair rail. Six samples were taken from different areas
of woodwork, and two samples were taken from the wall plaster to characterize the early
paints in the north bedroom.
North Wall of Room 203
North Bedroom Sample Locations
203-1. North wall, right side of chimneybreast, original plaster.
203-2. North wall, right side of chimneybreast, top plinth of original baseboard.
203-3. East wall, section of early chair rail left of window, on cap.
203-4. East wall, window architrave, left side, about 4’ up.
203-5. North wall mantel, face of right dentil.
203-6. South wall door, upper left corner, middle left panel.
203-7. North wall, left architrave of later window.
203-8. South wall, left of door, plaster at edge of large hole.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Room 203 North Wall North Wall Plaster
East Wall North Wall
203-1
203-2
Trapped
baseboard
203-3
203-4 window
architrave
203-5
dentil
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
38
Room 203 South Wall
South Wall
Woodwork Paint in Room 203.
The cross-section samples confirmed that the woodwork in this room was originally
painted with a deep green, coarsely ground paint composed primarily of the bright green,
copper-based pigment verdigris in combination with yellow ochre and white lead.
Verdigris is an unstable pigment which darkens significantly over time, but the
distribution of verdigris in the first green paint layer suggests that this paint was
originally a distinctive, deep glossy green. This green paint was found on the mantel
(203-5), the original architraves (203-4) and the chair rails (203-3). Like the other first
and second-floor rooms, the baseboards were originally dark brown (203-2) and the door
was originally grain-painted (203-5).
The baseboard plinth inside the narrow closet on the east side of the chimneybreast
retains generations 1 through 4, but was not repainted in generations 5 through 10. The
window on the north wall to the east of the mantel was identified as a later installation,
203-6 203-7
203-8
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
39
and its paint history begins at generation 7 of 10. The following chart shows how the
paints on the different woodwork elements can be aligned.
Room 203 Comparative Paint Histories Generation Architraves
203-4
Baseboard
trapped in
shelving
203-2
Chair rail
203-3
Mantel 203-5 Door 203-6 Later
window
architrave
203-7
10. Light blue-
green
Missing Light blue-
green
Light blue-
green
Light blue-
green
Light blue-
green
9. Light blue Missing Light blue Light blue Light blue Light blue
8. Blue Missing Blue Blue Blue Blue
7. Cream color Missing Cream color Cream color Cream color Cream color
6. Cream color Missing Cream color Cream color Cream color Missing
5. Cream color Missing Cream color Cream color Cream color Missing
4. Light gray Light gray Light gray Light gray Light gray Missing
3. Gray Gray Gray Gray Gray Missing
2. Varnish Varnish Varnish Varnish Varnish Missing
1. Verdigris-
based green
Dark brown Verdigris-
based green
Verdigris-
based green
Graining Missing
* Observations on-site.
Sample 203-2. North wall, right side of chimneybreast, top plinth of original baseboard.
Visible Light 200X Ultraviolet Light 200X
1. Brown paint
Shellac sealant
2. Varnish
3. Gray
Wood
4. Light gray
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
40
Sample 203-3. East wall, section of early chair rail left of window, on cap.
Visible Light 200X Ultraviolet Light 200X
Sample 203-4. East wall, window architrave, left side, about 4’ up.
Visible Light 200X Ultraviolet Light 200X
Sample 203-5. North wall mantel, face of right dentil.
Visible Light 200X Ultraviolet Light 200X
1. Deep green paint with verdigris
1. Gray primer
3. Gray
1. Deep green paint with verdigris
4. Light gray
1. Deep green paint with verdigris
1. Deep green paint with verdigris
1. Off-white primer
1.Off-white primer
Shellac sealant
Shellac sealant
8. Medium blue
9. Light blue
2. Varnish
1. Deep green paint with verdigris
5. Cream color
6. Cream color
7. Cream color
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
41
Sample 203-6. South wall door, upper left corner, middle left panel.
Visible Light 200X Ultraviolet Light 200X
Sample 203-7. North wall, left architrave of later window.
Visible Light 200X Ultraviolet Light 200X
1. Graining
3. Gray
4. Light gray
5. Cream color
6. Cream color
7. Cream color
8. Medium blue
9. Light blue
10. Light green
9. Light blue
8. Medium blue
7. Cream color
Wood
2. Varnish
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
42
Wall Paint in Room 203.
The limited evidence in two samples from different areas of wall plaster suggests that
there were at least two generations of white limewashes on the finish plaster, which are
now discolored and darkened. Similar accumulations of limewashes were found on the
wall plaster in rooms 102 and 201. In sample 203-8 the third and fourth generation paints
are thinly applied, opaque, cream-colored layers. Sample 203-1 was taken from the
plaster within the small closet on the east side of the chimney and this area was only
painted twice with the first limewash and the fourth-generation cream-colored paint.
Sample 203-1. North wall, right side of chimneybreast, original plaster.
Visible Light 200X UV Light 200X UV & TTC 200X
For carbohydrates
Sample 203-8. South wall, left of door, plaster at edge of large hole.
Visible Light 200X Ultraviolet Light 200X
Plaster
1. Discolored white limewash 2. Discolored white limewash
3. Cream color
4. Cream color
4. Cream color
Plaster
1. Discolored white limewash
remnants
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
43
Exterior:
One sample was taken from a relatively protected area of the soffit of the door opening to
search for the earliest surviving exterior paint, and one sample was taken from what
appeared to be an eroded line of paint on the original exterior door frame at the south end
of the house.
Exterior Sample Locations
EX-1. Soffit of door opening, east elevation, on north side.
EX-2. Trapped original door frame, south wall of house, left side at spot of white at
lower edge.
Neither exterior sample yielded helpful paint evidence. Sample EX-1 from the soffit of
the opening for the front door has only bright white modern paints. Sample EX-2 was
taken from what seemed to be a minute accumulation of white paint, but in the cross-
section there is only a film of grit and carbon on top of the wood.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
44
Sample EX-1. Soffit of door opening, east elevation, on north side.
Visible Light 100X
Ultraviolet Light 100X
Eroded wood
Wood
Modern white paints
Modern white paints
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Sample EX-2. Trapped original door frame, south wall of house, left side at spot of white
at lower edge.
Visible Light 200X
Ultraviolet Light 200X
Wood
Dirt and soot
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
46
Conclusion:
The evidence in this group of samples clearly shows that the woodwork paints on the
interior were mostly left intact with each repainting effort, leaving an important record of
the paint colors and materials applied from ca. 1799 to the present. The long sequences
of paint layers in each of the rooms in the main block of the house make it possible to
identify the original woodwork colors, and some of the plaster colors, in each of the
rooms. The interior woodwork was much more brightly colored when it was first
painted, but was later repainted in monochromatic palettes after the second generation of
paint.
The discovery of original blue paint on the woodwork in the parlor and the original rich
green paint on the woodwork in the north bedroom was particularly surprising. These
colors, using the pigments Prussian blue in the parlor and verdigris in the north bedroom,
were far more expensive than the later gray and cream-colored paints found in all the
spaces. The discovery of original grain-painting on the almost all the doors, and grain-
painting on the woodwork in the first- and second-floor passage, indicates that the first
owner spent a considerable amount of money on the interior finishes, and his selection of
stylish and costly finishes would have been recognized by every visitor to the house
during that early period. The combination of graining on the wainscoting in the parlor,
with a grained chair rail cap, but a blue-painted chair rail plinth, is eccentric. It is more
typical to pick out the chair rail cap in a different color from the wainscot. However, it
would be very interesting to replicate this paint treatment.
Four areas of intact early plaster were sampled to identify the earliest coatings in the
passage, the parlor and both bedrooms. The original layers found in the passage and
north bedroom are unpigmented, white limewashes, which would have been quite matte
and also easy to freshen with similar coatings. Limewashes were frequently applied as
hygienic coatings, and as temporary coatings while lime plaster cured. A distinctive
yellow-pigmented distemper paint (pigments bound in dilute hide glue) was found as the
first coating on the plaster in the parlor. This layer would have had a soft, matte
appearance and must have been an interesting contrast to the blue trim paint and the
grain-painted wainscoting and door in the most formal room in the house. No evidence
for early wallpapers (fibers, trapped papers, starch paste residues) was found in any of the
plaster samples.
Only two areas of the exterior were sampled to see how the exterior colors might relate to
the interior treatments, but the woodwork at the entrance had been stripped and the
trapped exterior door trim on the south elevation does not retain any helpful evidence. A
more concerted and extensive investigation of the exterior is sure to reveal more early
paint materials, if desired.
The following chart shows how the early paints in each of the rooms can be related. This
modest investigation suggests that in many of the repainting efforts all the woodwork was
painted the same color.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
47
Chart of Comparative Interior Paint Treatments
Room/Elements Generation 1
Ca. 1799
Generation 2 Generation 3 Generation 4 Generation 5 Observations
101 Dining Room
Mantel Dark brown on
off-white
primer
Dark brown Gray Light gray Cream color
Chair rails and
window architraves
Gray Pigmented
varnish
Gray Light gray Cream color
North door
architrave
Dark brown on
off-white
primer
Dark brown Gray Light gray Cream color
North door Graining Pigmented
varnish
Gray Light gray Cream color
South door
architrave*
Missing Missing Gray Light gray Cream color *Wood substrate
is disturbed
South door,
trapped opening
Dark brown on
off-white
primer
Missing Missing Missing Missing
Baseboards Dark brown Cream color
102 and 202
First and second-
floor passage
Chair rails and
door architraves *
Graining Pigmented
varnish
Gray Light gray Gray *Including west
wall door reveal
Baseboards Dark brown Dark brown Gray Light gray Gray
Trapped baseboard Dark brown Dark brown Gray Light gray Missing
Trapped pegrail Graining Missing Gray Light gray Missing
Trapped chair rail Graining Pigmented
varnish
Gray Light gray Missing
Trapped plaster Limewash Limewash Thin off-
white
Light gray Missing
Corner closet Missing Missing Missing Missing Gray
Balusters Graining Pigmented
varnish
Gray Light gray Cream color
Doors * Graining Pigmented
varnish
Gray Light gray Gray *Not including
west wall door
Transom window* Cream color or
graining
(disturbed
paint history)
Glossy tan Missing Missing Missing * The paint
history on the
transom window
is difficult to
decipher
103 Parlor
Mantel Blue Glossy black Gray Cream color Tan
Cornice, door
architraves
Blue Cream color Gray Cream color Tan
Chair rail plinth Blue Cream color Gray Cream color Tan
Wainscoting, cap
of chair rail
Graining Graining Gray Cream color Tan
Baseboards Dark brown Dark brown Gray Cream color Tan
Door Graining Graining Gray Cream color Tan
Plaster Yellow
distemper
Cream color Dull yellow Pale green Off-white
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Room/Elements Generation 1
Ca. 1799
Generation 2 Generation 3 Generation 4 Generation 5 Observations
201 South bedroom
Mantel Missing Pink Missing Missing Cream color
Architraves Cream color Pink Varnish Light gray Cream color
Baseboards Dark brown Dark brown Varnish Light gray Cream color
North door* Graining Possibly
varnished
Varnish Light gray Cream color *Door was
originally grained
on passage side
Plaster Limewash Limewash White Limewash Yellow
203 North bedroom
Mantel Coarse deep
green
Varnish Gray Light gray Cream color
Baseboard trapped
in shelving
Dark brown Varnish Gray Light gray Cream color
Chair rail Coarse deep
green
Varnish Gray Light gray Cream color
Door Graining Varnish Gray Light gray Cream color
North wall window
architrave
Missing Missing Missing Missing Missing
Plaster trapped in
shelving
Limewash Missing Missing Cream color Missing
Plaster Limewash Limewash Cream color Cream color Missing
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
49
COLOR MATCHING PROCEDURES
Uncast portions of the most intact samples taken from representative areas of woodwork
in the passage, dining room, parlor, south chamber and north chamber, and the plaster in
the parlor, were used for matching with the Minolta Chroma Meter CR-241, a tristimulus
color analyzer/microscope with color measurement area of 0.3mm. This instrument has
an internal, 360-degree pulsed xenon arc lamp and provides an accurate color
measurement in a choice of five different three-coordinate color systems. The target
period layer was ca. 1799 for all the rooms, except for the second-period pink paint on
the woodwork in the south bedroom. This pink paint is the first layer on the slightly later
mantel in this room.
The target period paints were exposed with a scalpel at 30X magnification to provide
clean areas for color matching. The exposed layers were measured three times in three
different areas of the exposed target layers to establish the color coordinates. The
measurements were first generated in the Munsell color system (a color standard used in
the Architectural Preservation field), and after the measurements were taken the closest
Munsell color swatches from a standard Munsell Book of Color (gloss paint standards)
was compared under 30X magnification to the actual samples. The measurements were
also generated in the CIE L*a*b* color space system, which is currently one of the most
widely accepted industry color space measuring systems.
However, when the Munsell matches generated through color measurement were
compared to the actual samples it became obvious that the paints were too darkened and
degraded to allow accurate color measurement. So, a second round of color matching
was done by eye comparing the Munsell swatches to the samples under 30-45X
magnifications and a color-corrected light source. The best visual matches for the
Munsell swatches were then used to generate close commercial paint matches.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
50
Dining Room – ca. 1799 Gray Woodwork Paint
Sample 101-3, 101-4
Color-matched November 20, 2014
Benjamin Moore #2126-40 “Sweatshirt Gray”
Color System* Coordinates
Munsell Hue Value Chroma
2.0PB 6.1 0.9
CIE L*a*b* Black to White Green to Red Blue to Yellow
L61.86 a-1.01 b-3.83
Sample 101-3
The gray paint layer was matched by eye at 30X magnification under a color-corrected
light source to the Munsell Book of standards because it was too degraded to allow
accurate color measurement with a Minolta CR 241 colorimeter/microscope. The swatch
for #2126-40 is an excellent visual match to the best surviving areas of this original gray
woodwork paint. The evidence in the cross-section and the uncast samples suggest this
paint was originally somewhat glossy and could be replicated in a “semi-gloss” gloss
level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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First and Second Floors – ca. 1799 Dark Brown Baseboard Paint
Sample 101-5, 102-3
Color-matched November 20, 2014
Color System* Coordinates
Munsell Hue Value Chroma
2.5YR 3.3 2.3
CIE L*a*b* Black to White Green to Red Blue to Yellow
L33.63 a+8.89 b+9.80
Benjamin Moore #HC-71 “Hasbrouck Brown”
Color System* Coordinates
Munsell Hue Value Chroma
2.5YR 3.1 2.4
CIE L*a*b* Black to White Green to Red Blue to Yellow
L32.2 a+9.03 b+10.16
Sample 101-5
The dark brown baseboard paint was matched by eye at 30X magnification under a color-
corrected light source to the Munsell Book of standards and it was measured with a
Minolta CR 241 colorimeter/microscope. The color difference between the dark brown
paint and the commercial match HC-71 is an excellent numeric match. The swatch for
#HC-71 is also an excellent visual match to the best surviving areas of this original
baseboard paint. The evidence in the cross-section and the uncast samples suggest this
paint was originally somewhat glossy and could be replicated in a “semi-gloss” gloss
level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
52
First and Second-floor Passage – ca. 1799 Yellow Graining Base Coat
Sample 102-6, 102-8, 102-9
Color-matched November 20, 2014
Benjamin Moore #2158-30 “Delightful Golden”
Color System* Coordinates
Munsell Hue Value Chroma
9.0YR 6.5 7.2
CIE L*a*b* Black to White Green to Red Blue to Yellow
L65.9 a+10.91 b+44.81
Sample 102-8
The yellow graining basecoat was matched by eye at 30X magnification under a color-
corrected light source to the Munsell Book of standards but it was too uneven and
degraded to allow accurate measurement with the Minolta colorimeter/microscope CR-
241. The swatch for #2158-30 is an excellent visual and numeric match to the best
surviving areas of this original graining base layer. The evidence in the cross-section and
the uncast samples suggest this paint was originally somewhat glossy and could be
replicated in a “semi-gloss” gloss level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Parlor – ca. 1799 Blue Woodwork Paint
Sample 103-7, 103-8
Color-matched November 20, 2014
Benjamin Moore Colonial Williamsburg Color Collection #CW-600 “Bracken Blue”
Color System* Coordinates
Munsell Hue Value Chroma
4.5B 6.1 4.0
CIE L*a*b* Black to White Green to Red Blue to Yellow
L61.83 a-12.86 b-12.12
Sample 102-7
The original blue woodwork paint was matched by eye at 30X magnification under a
color-corrected light source to the Munsell Book of standards as it is too discolored for
accurate color measurement. The swatch for #CW-600 is an excellent visual match to the
best surviving areas of this blue paint. The evidence in the cross-section and the uncast
samples suggest this paint was originally somewhat glossy and could be replicated in a
“semi-gloss” gloss level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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Parlor – ca. 1799 Yellow Distemper Wall Paint
Sample 103-10
Color-matched November 20, 2014
Benjamin Moore Colonial Williamsburg Color Collection #CW-400 “Damask Yellow”
Color System* Coordinates
Munsell Hue Value Chroma
4.7Y 8.2 5.6
CIE L*a*b* Black to White Green to Red Blue to Yellow
L83.46 a-3.26 b+39.74
Sample 103-10
The original yellow wall paint was matched by eye at 30X magnification under a color-
corrected light source to the Munsell Book of standards as it is too translucent and
discolored for accurate color measurement. The swatch for #CW-400 is an excellent
visual match to the best surviving areas of the original distemper wall paint. The
evidence in the cross-section and the uncast samples suggest this paint was originally
matte and could be replicated in a flat gloss level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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South Bedroom – post-1799 Pink Woodwork Paint
Sample 201-1, 201-3, 201-4, 201-5, 201-7
Color-matched November 20, 2014
Color System* Coordinates
Munsell Hue Value Chroma
3.0YR 5.8 5.9
CIE L*a*b* Black to White Green to Red Blue to Yellow
L54.78 a+17.08 b+23.76
Benjamin Moore Colonial Williamsburg Collection #CW-230 “Carter Red”
Color System* Coordinates
Munsell Hue Value Chroma
7.9R 5.6 6.9
CIE L*a*b* Black to White Green to Red Blue to Yellow
L56.82 a+28.42 b+21.52
Sample 201-4
The second-generation woodwork paint was matched by eye at 30X magnification under
a color-corrected light source to the Munsell Book of standards and it was measured with
a Minolta CR 241 colorimeter/microscope. This is the first paint layer on the slightly
later mantel. The swatch for #CW 230 is a good visual and numeric match to the best
surviving areas of this dark pink paint. The commercial swatch is just slightly more red
than the surviving pink paint, but some areas of this degraded paint seem to have been
bleached by sunlight. The evidence in the cross-section and the uncast samples suggest
this paint was originally somewhat glossy and could be replicated in a “semi-gloss” gloss
level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
56
North Bedroom – ca. 1799 Deep Green Woodwork Paint
Sample 203-3, 203-4, 203-5
Color-matched November 20, 2014
Benjamin Moore #HC-135 “Lafayette Green”
Color System* Coordinates
Munsell Hue Value Chroma
8.2G 3.7 2.0
CIE L*a*b* Black to White Green to Red Blue to Yellow
L37.56 a-11.11 b+2.05
Sample 203-4
The original green woodwork paint was matched by eye at 30X magnification under a
color-corrected light source to the Munsell Book of standards but it is too discolored and
degraded for accurate color measurement. The swatch for #HC-135 is an excellent visual
match to the best surviving areas of this grainy darkgreen paint. The evidence in the
cross-section and the uncast samples suggest this paint was originally glossy and could be
replicated in a high gloss level.
Farmer’s Delight Interior Paint Study –Susan L. Buck, November 20, 2014
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* COLOR SYSTEMS Derived from the Minolta CR-241 Instruction Manual and
Minolta Precise Color Communication
Chroma Meter CR-241 offers five different color systems for measuring absolute
chromaticity: CIE Yxy (1931), L*a*b* (1976), and L*C*H* (1976) colorimetric
densities DxDyDz; Munsell notation and four systems for measuring color differences.
For two colors to match, three quantities defining color must be identical. These three
quantities are called tristimulus values X, Y, and Z as determined by CIE (Commission
Internationale de l=Eclairage) in 1931.
Color as perceived has three dimensions: hue, chroma and lightness. Chromaticity
includes hue and chroma (saturation), specified by two chromaticity coordinates. Since
these two coordinates cannot describe a color completely, a lightness factor must also be
included to identify a specimen color precisely.
Munsell Color System: The Munsell color system consists of a series of color charts
which are intended to be used for visual comparison with the specimen. Colors are
defined in terms of the Munsell Hues (H; indicates hue), Munsell Value (V; indicates
lightness), and Munsell Chroma (C; indicates saturation) and written as H V/C.
CIE Yxy (CIE 1931): In the Yxy (CIE 1931) color system, Y is a lightness factor
expressed as a percentage based on a perfect reflectance of 100%, x and y are the
chromaticity coordinates of the CIE x, y Chromaticity Diagram.
CIE L*a*b*: Equal distances in the CIE x,y Chromaticity Diagram do not represent equal
differences in color as perceived. The CIE L*a*b* color system, however, more closely
represents human sensitivity to color. Equal distances in this system approximately equal
perceived color differences. L* is the lightness variable; a* and b* are the chromaticity
coordinates.
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ΔE: ΔE (Delta E) is the industry measure used to determine how closely two colors
match in the CIE L*a*b*. The symbol Δ means “the change in”. It is based on
calculating the sum of the differences between each measure. The calculation is: ΔE =
√(ΔL*) 2 + (Δa*)
2 + (Δb*)
2 , or, the color difference equals the square root of the squared
sums of the differences between each of the three L* a* b* tristimulus values. Industry
color standards indicate a ΔE of 1 is barely perceptible to the human eye, and ΔE of 6 to
7 is acceptable for color matches in the printing industry.
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REFERENCES
Cross-section Preparation Procedures:
The samples were cast into mini-cubes of polyester resin (Excel Technologies, Inc.,
Enfield, CT). The resin was allowed to cure for 24 hours at room temperature and under
ambient light. The cubes were then ground to expose the cross-sections, and dry polished
with 400 and 600 grit wet-dry papers and Micro-Mesh polishing cloths, with grits from
1500 to 12,000.
Cross-section microscopy analysis was conducted with a Nikon Eclipse 80i epi-
fluorescence microscope equipped with an EXFO X-Cite 120 Fluorescence Illumination
System fiberoptic halogen light source and a polarizing light base using SPOT Advanced
software (v. 4.6) for digital image capture and Adobe Photoshop CS for digital image
management. Photographs and digital images of the best representative cross-sections
are included in this report. UV photographs were taken with the UV-2A filter in place
(330-380 nanometers excitation with a 400 nm dichroic mirror and a 420 nm. barrier
filter). Please note that the colors in the printed photomicrographs may not accurately
reflect the actual color of the samples because the colors in the digital images are affected
by the variability of color printing.
The following fluorescent stains were used for examination of the samples:
Fluorescein isothiocyanate (FITC) 0.2% in acetone. Positive reaction for proteins
is yellowish-green under the B-2A filter.
Triphenyl tetrazolium chloride (TTC) 4.0% in ethanol to identify the presence of
carbohydrates (starches, gums, sugars). Positive reaction color is dark red or
brown.
2, 7 Dichlorofluorescein (DCF) 0.2% in ethanol to identify the presence of
saturated and unsaturated lipids (oils). Positive reaction for saturated lipids is pink
and unsaturated lipids is yellow.
Rhodamine B (RHOB) 0.06% in ethanol to identify the presence of oils. Positive
reaction color is bright orange.
N-(6-methoxy-8-quinolyl)-p-toluenesulfonamide (TSQ) 0.2% in ethanol to mark
the presence of Zn in the cast cross-section. Positive reaction color is bright blue-
white.
The best cross-section photographs for each area were included in this report.
Photographs were taken at 100X, 200X and 400X magnifications.
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Information Provided by Ultraviolet Light Microscopy:
When viewed under visible light, cross-sections which contain ground, paint and varnish
may often be difficult to interpret, particularly because clear finish layers look uniformly
brown or tan. It may be impossible using only visible light to distinguish between
multiple varnish layers. Illumination with ultraviolet light provides considerably more
information about the layers present in a sample because different organic, and some
inorganic, materials autofluoresce (or glow) with characteristic colors.
There are certain fluorescence colors which indicate the presence of specific types of
materials. For example: shellac fluoresces orange (or yellow-orange) when exposed to
ultraviolet light, while plant resin varnishes (typically amber, copal, sandarac and mastic)
fluoresce bright white. Wax does not usually fluoresce; in fact, in the ultraviolet it tends
to appear almost the same color as the polyester casting resin. In visible light wax
appears as a somewhat translucent white layer. Paints and glaze layers which contain
resins as part of the binding medium will also fluoresce under ultraviolet light at high
magnifications. Other materials such as lead white, titanium white and hide glue also
have a whitish autofluorescence.
There are other indicators which show that a surface has aged, such as cracks which
extend through finish layers, accumulations of dirt between layers, and sometimes
diminished fluorescence intensity, especially along the top edge of a surface which has
been exposed to light and air for a long period of time.
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Farmer’s Delight Sample Locations
Paint Samples removed August 6 and 7, 2014 by Susan L. Buck
Sample Locations
First Floor
Dining Room 101
101-1. North wall, left architrave, backband molding, inner molding, about 5’ up.
101-2. North wall door, upper left corner, bottom left panel.
101-3. East wall, north window, left architrave, backband molding.
101-4. East wall, chair rail plinth, below left architrave of north window.
101-5. East wall, baseboard plinth, below left architrave of north window.
101-6. South wall, mantel, cove molding below dentils, left side.
101-7. South wall, trapped original door opening, interior or exterior surface?, in west
corner.
101-8. South wall, right architrave for door opening.
Entry Hall 102
102-1. South wall, southeast corner, chair rail trapped in corner closet.
102-2. South wall, southeast corner, plaster on lower wall trapped in corner closet.
102-3. South wall, southeast corner, baseboard trapped in corner closet.
102-4. South wall, southeast corner, later corner closet, upper left corner of lower door
opening.
102-5. South wall, southeast corner, peg rail trapped in corner closet.
102-6. Staircase baluster, on north-facing plinth of baluster on seventh step up.
102-7. Door under stair, upper left corner, middle left panel.
102-8. South wall, door architrave under stair, backband molding, left side.
102-9. West wall, door opening, left side of door reveal, about 5’ up. (all paints match
except the moldings above the door)
102-10. North wall, chair rail, northwest corner.
102-11. North wall, base plinth, northwest corner.
Parlor 103
103-1. North wall mantel, reeding above opening, right side.
103-2. North wall mantel, block below reeding, right side,
103-3. West wall, plinth for chair rail, below north window.
103-4. West wall, top of chair rail, just left of north window.
103-5. West wall, wainscoting below north window (graining?)
103-6. West wall, plinth of baseboard below north window.
103-7. West wall, cornice, base molding between the two windows.
103-8. South wall, door architrave, backband molding, left side about 4’ up.
103-9. South wall door, upper left corner of middle left panel.
103-10. West wall, materials overlapped onto top of north window architrave.
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Second Floor
South Bedroom 201
201-1. North wall, right door architrave, about 4 ½’ up.
201-2. North wall, plaster just above chair rail, left of door.
201-3. North wall, chair rail, just left of door.
201-4. South wall, chair rail at join with mantel, right side.
201-5. South wall mantel, right side, third panel up from bottom, upper left corner –
mantel is a later installation.
201-6. North wall, baseboard right of door.
201-7. West wall, window architrave, north window, left architrave.
Second-floor Hall 202
202-1. South wall, chair rail plinth, just right of door opening.
202-2. East wall, lower left corner of transom sash.
202-3. East wall, rail below transom window.
202-4. North wall door architrave, left side about 4 ½’ up.
202-5. North wall door, upper left corner, middle left panel.
202-6. East wall, baseboard left of door.
North Bedroom 203
203-1. North wall, right side of chimneybreast, original plaster.
203-2. North wall, right side of chimneybreast, top plinth of original baseboard.
203-3. East wall, section of early chair rail left of window, on cap.
203-4. East wall, window architrave, left side, about 4’ up.
203-5. North wall mantel, face of right dentil.
203-6. South wall door, upper left corner, middle left panel.
203-7. North wall, left architrave of later window.
203-8. South wall, left of door, plaster at edge of large hole.
Exterior
EX-1. Soffit of door opening, east elevation, on north side.
EX-2. Trapped original door frame, south wall of house, left side at spot of white at
lower edge.