|
A W Faber & A W Faber "Castell" 367
(25cm Scale, Enhanced Mannheim, Digit reg. cursor)
Examples: c1900, c1903-4, c1908-9, c1910-13, 1929
Version Comparison
Five versions, four from the first 10 years and one near the end of the model lifespan fully detailed below, differences summarised as follows:
Click on a column heading to jump down to version images and detailed description.
|
c1900 |
c1903-4 |
c1908-9 |
c1910-13 |
c1929 |
Branding:
|
AW Faber
|
AW Faber "Castell"
|
Scale Style:
|
Double railway
|
Railway track
|
M Gauge Mark:
|
B
|
A & B
|
p Gauge Mark:
|
A & B
|
A, B, C & D
|
C & C1 Gauge Marks:
|
C
|
C & D
|
C
|
Measure in Well:
|
cm
|
-
|
Stock Height:
|
9mm
|
11mm
|
Stock Form:
|
Single piece
|
2-part
|
Stock Flex:
|
Longitudinal slits
|
Celluloid sprung
|
Steel sprung
|
Slide Springs:
|
Below groove
|
In groove |
- |
Bracing:
|
-
|
Longitudinal, metal
|
Celluliod Facing:
|
Front, well
|
Front, back of slide, well, top & bottom edges
|
Celluliod Fixing:
|
-
|
Wooden pins
|
Cursor Grooves:
|
Low, top edge angled
|
Low |
High |
Cursor Profile:
|
Angled top edge
|
Straight top edge
|
Cursor Window:
|
Round cornders
|
Square corners
|
Cursor Spring:
|
Centre sprung
|
Left end sprung
|
Digit Register:
|
Domed rivet
|
Flat rivet
|
Brand & Model:
|
Gold brand on front
|
Black brand & model on front
|
Black brand & model in well
|
"*" or "Scales":
|
-
|
*
|
Scales
|
DRGM Labelling:
|
Gold, front centre
|
Black, front centre
|
Black, well
|
DRP Labelling:
|
-
|
Front centre
|
Well
|
Origin Labelling:
|
Gold, front centre
|
-
|
Black, back top centre
|
Tracking Nmemonics:
|
Arrows + full text
|
Arrows + short text
|
Click on the images for enlargements.
A W Faber 367 (c1900) |
|
|
Summary
|
System:
|
Enhanced Mannheim
|
Specialization:
|
-
|
Type:
|
Closed frame
|
Material:
|
Boxwood
|
Facings:
|
Celluliod
|
Scale Length:
|
25cm
|
No of Scales:
|
7
|
Front Length:
|
280mm
|
Front Width:
|
27.5mm
|
Language:
|
English
|
Origin:
|
Bavaria
|
Date:
|
c1900
|
Features/Notes:
|
Digit registering cursor.
Unlabelled model.
|
Scales (colours as shown)
|
Front:
|
A [ B, C ] D
|
Back:
|
[ S, L, T ]
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
Style:
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Railway track (double)
|
Typeface:
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Serif
|
Extensions:
|
-
|
Decimals:
|
As units between 1 & 2 on C & D
|
Gauge Marks:
|
p (3.14) on A & B
M (1/p=0.318) on B
C (1.13) on C
C1 (3.57) on C
|
Rulers:
|
inch on top edge
cm on bottom edge
cm continuation in well for longer measurements
|
Features/Notes:
|
Ruler labels are above the cursor groove and tick marks below it on top and bottom edges.
M gauge mark features long left vertical.
|
Construction
|
Stock:
|
Single piece solid stock with 2 longitudinal slits cut in well.
Boxwood springs in the well, below the slide groove of the upper rail of the stock (DRGM 98350, 1898).
Left and right viewing cutouts with index marks, in back for reverse of slide.
Bevelled top edge, square bottom edge.
Low cursor grooves, top edge cut angled, bottom edge cut parallel to front face.
Shallow rebate in back .
Front and well only celluloid faced.
Length x Width x Height (mm) - 280 x 33 x 9
|
Slide:
|
Double sided
Celluliod faced on both sides
Front face width (mm) - 11.5
|
Cursor:
|
Aluminium frame, glass pane.
+/- 6 digit registering (DRGM 116832, 1899) with pointer to track magnitudes in calculations, 'domed' rivets.
Angled top runner to fit bevel and cursor groove.
Rounded window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 46 x 33 (including sloped top runner)
|
Printing (colours as shown)
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Stock:
|
"A.W.FABER.", "MADE IN BAVARIA." and "D.R.G.M. 98350 & 116832." in centre of front bottom rail, sans-serif apart from DRGM numbers serif.
"QUOTIENT +1" and "PRODUCT -1" on the left and right ends respectively of the front lower stock rail, serif.
|
Slide:
|
-
|
Cursor:
|
-
|
Labels:
|
On back, paper table featuring conversions and mathematical and physical constants.
|
Instructions
|
None
|
Box (colours as shown)
|
Style:
|
Square
|
L x W x D mm:
|
284 x 40 x 20
|
Material:
|
Cardboard
|
Colour:
|
Black
|
Construction:
|
2 part, internal sleeve join.
Cloth covered.
|
Printing:
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"A.W. FABER'S." in an arch above "CALCULATING RULE", then "LONDON" on the front.
"MADE IN BAVARIA." smaller underneath to the left.
|
Labels:
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Large advertising on back. Gold on black, ornate borders.
Ends missing.
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Detail Images
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Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
|
Click on the images for enlargements.
A W Faber 367 (c1903-4) |
|
|
Summary
|
System:
|
Enhanced Mannheim
|
Specialization:
|
-
|
Type:
|
Closed frame
|
Material:
|
Boxwood
|
Facings:
|
Celluliod
|
Scale Length:
|
25cm
|
No of Scales:
|
7
|
Front Length:
|
280mm
|
Front Width:
|
27.5mm
|
Language:
|
English
|
Origin:
|
Bavaria
|
Date:
|
c1903-4
|
Features/Notes:
|
Digit registering cursor.
Unlabelled model.
|
Scales (colours as shown)
|
Front:
|
A [ B, C ] D
|
Back:
|
[ S, L, T ]
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
Style:
|
Railway track (double)
|
Typeface:
|
Serif
|
Extensions:
|
-
|
Decimals:
|
As units between 1 & 2 on C & D
|
Gauge Marks:
|
p (3.14) on A & B
M (1/p=0.318) on B
C (1.13) on C
C1 (3.57) on C
|
Rulers:
|
inch on top edge
cm on bottom edge
cm continuation in well for longer measurements
|
Features/Notes:
|
M gauge mark features long left vertical.
|
Construction
|
Stock:
|
Single piece solid stock with 2 longitudinal slits cut in well.
Boxwood springs in the well, below the slide groove of the upper rail of the stock (DRGM 98350, 1898).
Left and right viewing cutouts with index marks, in back for reverse of slide.
Bevelled top edge, square bottom edge.
High cursor grooves both cut parallel to front face.
Shallow rebate in back .
Front, well, top and bottom edges celluloid faced.
Length x Width x Height (mm) - 280 x 33 x 9
|
Slide:
|
Double sided
Celluliod faced on both sides
Front face width (mm) - 11.5
|
Cursor:
|
Aluminium frame, glass pane.
+/- 6 digit registering (DRGM 116832, 1899) with pointer to track magnitudes in calculations, 'domed' rivets.
Rounded window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 46 x 32 (including sloped top runner)
|
Printing (colours as shown)
|
Stock:
|
"A.W.FABER.", "MADE IN BAVARIA." and "D.R.G.M. 98350 & 116832." in centre of front bottom rail, sans-serif apart from DRGM numbers serif.
"QUOTIENT +1" and "PRODUCT -1" on the left and right ends respectively of the front lower stock rail, serif.
+|- arrow symbols on the left and right ends of the front upper stock rail.
|
Slide:
|
-
|
Cursor:
|
-
|
Labels:
|
On back, paper table featuring conversions and mathematical and physical constants.
|
Instructions
|
None
|
Box (colours as shown)
|
Style:
|
Flat-round
|
L x W x D mm:
|
290 x 45 x 18
|
Material:
|
Cardboard
|
Colour:
|
Black
|
Construction:
|
2 part, internal sleeve join.
Cloth covered.
Metal braced ends.
|
Printing:
|
"A.W. FABER'S." in an arch above "CALCULATING RULE", then "LONDON" on the front.
"MADE IN BAVARIA." smaller underneath to the left.
|
Labels:
|
Large advertising on back. Gold on black, ornate borders.
"367" with solid border on white, model number remnant on right hand end.
|
Detail Images
|
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
|
Click on the images for enlargements.
A W Faber 367 (c1908-9) |
|
|
Summary
|
System:
|
Enhanced Mannheim
|
Specialization:
|
-
|
Type:
|
Closed frame
|
Material:
|
Boxwood
|
Facings:
|
Celluliod
|
Scale Length:
|
25cm
|
No of Scales:
|
7
|
Front Length:
|
280mm
|
Front Width:
|
27.5mm
|
Language:
|
English
|
Origin:
|
Bavaria
|
Date:
|
c1908-9
|
Features/Notes:
|
Digit registering cursor.
|
Scales (colours as shown)
|
Front:
|
A [ B, C ] D
|
Back:
|
[ S, L, T ]
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
Style:
|
Railway track
|
Typeface:
|
Serif
|
Extensions:
|
-
|
Decimals:
|
As units between 1 & 2 on C & D
|
Gauge Marks:
|
p (3.14) on A & B
M (1/p=0.318) on A & B
C (1.13) on C & D
C1 (3.57) on C & D
|
Rulers:
|
inch on top edge
cm on bottom edge
cm continuation in well for longer measurements
|
Features/Notes:
|
-
|
Construction
|
Stock:
|
2 part split stock joined with celluloid (DRGM 306107, 1907).
Braced with longitudinal metal strips (DRP 206428, 1908).
Boxwood springs in the well, in the slide groove of the upper rail of the stock (DRGM 98350, 1898).
Left and right viewing cutouts with index marks, in back for reverse of slide.
Bevelled top edge, square bottom edge.
High cursor grooves both cut parallel to front face.
Shallow rebate in back .
Front, well, top and bottom edges celluloid faced, secured with wooden pins (DRGM 371190, 1908).
Length x Width x Height (mm) - 280 x 33 x 9
|
Slide:
|
Double sided
Braced with longitudinal metal strips (DRP 206428, 1908)
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Front face width (mm) - 11.5
|
Cursor:
|
Aluminium frame, replacement plastic pane.
+/- 6 digit registering (DRGM 116832, 1899) with pointer to track magnitudes in calculations, 'flat' rivets.
Square window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 44 x 32
|
Printing (colours as shown)
|
Stock:
|
"367 * A.W. FABER.", "D.R. PATENT. No 206428." & "D.R.G.M. 371190." on front lower rail in the centre, sans-serif.
"Quot. +1" and "Prod. -1" on the left and right ends respectively of the front lower stock rail, sans-serif.
+|- arrow symbols on the left and right ends of the front upper stock rail.
|
Slide:
|
-
|
Cursor:
|
-
|
Labels:
|
On back, paper table featuring conversions and mathematical and physical constants.
|
Instructions
|
None
|
Box (colours as shown)
|
Style:
|
Rounded
|
L x W x D mm:
|
290 x 47 x 22
|
Material:
|
Cardboard
|
Colour:
|
Black
|
Construction:
|
2 part, internal sleeve join.
Cloth covered.
Metal braced ends.
|
Printing:
|
"A.W. FABER." and underneath "D.R.P. No 206428" followed by "MADE IN BAVARIA." on the front.
|
Labels:
|
Large red/green on white advertising label on back.
Box ends damaged and taped.
|
Detail Images
|
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
|
Click on the images for enlargements.
A W Faber 367 (c1910-13) |
|
|
Summary
|
System:
|
Enhanced Mannheim
|
Specialization:
|
-
|
Type:
|
Closed frame
|
Material:
|
Boxwood
|
Facings:
|
Celluliod
|
Scale Length:
|
25cm
|
No of Scales:
|
7
|
Front Length:
|
280mm
|
Front Width:
|
27.5mm
|
Language:
|
German
|
Origin:
|
-
|
Date:
|
c1910-13
|
Features/Notes:
|
Digit registering cursor.
|
Scales (colours as shown)
|
Front:
|
A [ B, C ] D
|
Back:
|
[ S, L, T ]
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
Style:
|
Railway track
|
Typeface:
|
Serif
|
Extensions:
|
-
|
Decimals:
|
As units between 1 & 2 on C & D
|
Gauge Marks:
|
p (3.14) on A & B
M (1/p=0.318) on A & B
C (1.13) on C & D
C1 (3.57) on C & D
|
Rulers:
|
cm on top edge
cm on bottom edge
cm continuation in well for longer measurements
|
Features/Notes:
|
-
|
Construction
|
Stock:
|
2 part split stock joined with celluloid (DRGM 306107, 1907).
Braced with longitudinal metal strips (DRP 206428, 1908).
Left and right viewing cutouts with index marks, in back for reverse of slide.
Bevelled top edge, square bottom edge.
High cursor grooves both cut parallel to front face.
Shallow rebate in back .
Front, well, top and bottom edges celluloid faced, secured with wooden pins (DRGM 371190, 1908).
Length x Width x Height (mm) - 280 x 33 x 9
|
Slide:
|
Double sided
Braced with longitudinal metal strips (DRP 206428, 1908)
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Front face width (mm) - 11.5
|
Cursor:
|
Aluminium frame, glass pane.
+/- 6 digit registering (DRGM 116832, 1899) with pointer to track magnitudes in calculations, 'flat' rivets.
Square window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 44 x 32
|
Printing (colours as shown)
|
Stock:
|
"367 * A.W. FABER.", "D.R. PATENT. No 206428." & "D.R.G.M. 371190." on front lower rail in the centre, sans-serif.
"Quot. +1" and "Prod. -1" on the left and right ends respectively of the front lower stock rail, sans-serif.
+|- arrow symbols on the left and right ends of the front upper stock rail.
|
Slide:
|
-
|
Cursor:
|
-
|
Labels:
|
On back, paper table featuring conversions and mathematical and physical constants.
|
Instructions
|
The rule came with "Calculating Rule" instructions which are a little tatty and dirty and can be seen here. Although of the correct time period, they are unlikely to be the instructions originally supplied since the rule is in German and the instruction are in English.
|
Box (colours as shown)
|
Style:
|
Not present
|
L x W x D mm:
|
-
|
Material:
|
-
|
Colour:
|
-
|
Construction:
|
-
|
Printing:
|
-
|
Labels:
|
-
|
Detail Images
|
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
|
Click on the images for enlargements.
A W Faber "Castell" 367 (1929) |
|
|
Summary
|
System:
|
Enhanced Mannheim
|
Specialization:
|
-
|
Type:
|
Closed frame
|
Material:
|
Pearwood
|
Facings:
|
Celluliod
|
Scale Length:
|
25cm
|
No of Scales:
|
7
|
Front Length:
|
280mm
|
Front Width:
|
27.5mm
|
Language:
|
English
|
Origin:
|
Bavaria
|
Date:
|
1929, May
|
Features/Notes:
|
Digit registering cursor.
|
Scales (colours as shown)
|
Front:
|
A [ B, C ] D
|
Back:
|
[ S, L, T ]
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
Style:
|
Railway track
|
Typeface:
|
Serif
|
Extensions:
|
-
|
Decimals:
|
As units between 1 & 2 on C & D
|
Gauge Marks:
|
p (3.14) on A, B, C & D
M (1/p=0.318) on A & B
C (1.13) on C
C1 (3.57) on C
|
Rulers:
|
inch on top edge
cm on bottom edge
|
Features/Notes:
|
-
|
Construction
|
Stock:
|
2 part split stock joined with steel springs (DRGM 522689, 1912; DRGM 452965, 1911).
Braced with longitudinal metal strips (DRP 206428, 1908).
Left and right viewing cutouts with index marks, in back for reverse of slide.
Bevelled top edge, square bottom edge.
High cursor grooves both cut parallel to front face.
Shallow rebate in back .
Front, well, top and bottom edges celluloid faced, secured with wooden pins (DRGM 371190, 1908).
Length x Width x Height (mm) - 280 x 33 x 11
|
Slide:
|
Double sided
Braced with longitudinal metal strips (DRP 206428, 1908)
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Front face width (mm) - 11.5
|
Cursor:
|
Aluminium frame, glass pane.
+/- 6 digit registering (DRGM 116832, 1899) with pointer to track magnitudes in calculations, 'flat' rivets.
Square window.
Left end riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 44 x 32
|
Printing (colours as shown)
|
Stock:
|
"367" + scales logo + "A.W.FABER" + ""CASTELL"" between lying castles in the centre of well above the split, sans-serif.
"D.R. PATENT. No 206428." in the centre of well below the split, sans-serif.
"Quot. +1" and "Prod. -1" on the left and right ends respectively of the front lower stock rail, sans-serif.
+|- arrow symbols on the left and right ends of the front upper stock rail.
"MADE IN BAVARIA" on the top centre of the back, sans-serif.
|
Slide:
|
|
Cursor:
|
"MADE IN BAVARIA" stamped on the bottom edge, sans-serif.
|
Labels:
|
On back, paper table featuring conversions and mathematical and physical constants.
|
Instructions
|
None
|
Box (colours as shown)
|
Style:
|
Rounded
|
L x W x D mm:
|
300 x 47 x 21
|
Material:
|
Cardboard
|
Colour:
|
Black
|
Construction:
|
2 part, internal sleeve join.
Faced.
|
Printing:
|
"A.W. FABER" and underneath scales logo then "D.R.P. No 206428" beneath that on the front.
Round indentations on the front either side of the opening.
|
Labels:
|
Large red/green on white advertising label on back.
Ends covered in taped repair.
|
Detail Images
|
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
Click on the images for enlargements.
|
|