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A W Faber 365A
(25cm Scale, Enhanced Mannheim)
Examples: c1906, c1910-12
Version Comparison
Two examples of the model fully detailed below, one towards the start of the model lifespan and one at the end, differences summarised as follows:
Click on a column heading to jump down to version images and detailed description.
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c1904-6 |
c1910-2 |
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Stock Length:
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26cm
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28cm
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Decimals:
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Tenths, units, 0.5's & 5's
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Units
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Stock Form:
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Single piece
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2-part
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Stock Flex:
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Longitudinal slits
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Celluloid sprung
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Bracing:
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-
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Longitudinal, metal
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Celluliod Fixing:
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-
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Wooden pins
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Cursor Window:
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Round cornders
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Square corners
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Brand & Model:
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Brand only
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Both
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Origin Labelling:
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Front, centre
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Front, right
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Click on the images for enlargements.
A W Faber 365A (c1906) |
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Summary
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System:
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Enhanced Mannheim
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Specialization:
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-
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Type:
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Closed frame
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Material:
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Boxwood
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Facings:
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Celluliod
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Scale Length:
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25cm
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No of Scales:
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7
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Front Length:
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260mm
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Front Width:
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27.5mm
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Language:
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English
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Origin:
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Germany
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Date:
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c1906
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Features/Notes:
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Boxwood springs in well.
Unlabelled model, normal (not railway track) scales, hence 'A' suffix to the the catalogue model number.
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Scales (colours as shown)
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Front:
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A [ B, C ] D
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Back:
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[ S, L, T ]
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Labels Left:
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-
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Labels Left:
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-
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Labels Right:
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-
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Labels Right:
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All, as scales
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Style:
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Normal
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Typeface:
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Serif
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Extensions:
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-
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Decimals:
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Tenths between 1 & 2 on A, B, C & D
Units between 10 and 20 on A & B
0.5's between 2 & 10 on A, B, C & D
5's between 20 and 100 on A & B
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Gauge Marks:
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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
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Rulers:
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inch on top edge
cm on bottom edge
cm continuation in well for longer measurements
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Features/Notes:
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There are gauge marks on the A & B scales, without labels, corresponding to the 28.7 and 746 gauge marks from an electro rule. It is believed that these marks are aberations, the scales originally being intended for a model 368 electro rule.
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Construction
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Stock:
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Single piece solid stock with 2 longitudinal slits cut in well.
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.
Length x Width x Height (mm) - 260 x 33 x 9
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Slide:
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Double sided
Celluliod faced on both sides
Front face width (mm) - 11.5
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Cursor:
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Aluminium frame, glass pane.
Rounded window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 29 x 32
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Printing (colours as shown)
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Stock:
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"A.W.FABER." and "MADE IN GERMANY." in centre of front bottom rail, sans-serif.
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Slide:
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-
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Cursor:
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-
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Labels:
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On back, paper table featuring conversions and mathematical and physical constants.
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Instructions
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None
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Box (colours as shown)
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Style:
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Rounded
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L x W x D mm:
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270 x 45 x 25
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Material:
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Cardboard
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Colour:
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Black
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Construction:
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2 part, internal sleeve join.
Cloth covered.
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Printing:
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"A.W. FABER." and smaller underneath "MADE IN GERMANY." on the front.
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Labels:
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Large advertising on back. Black on white, ornate borders.
Box ends damaged.
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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.
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Click on the images for enlargements.
A W Faber 365A (c1910-12) |
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Summary
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System:
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Enhanced Mannheim
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Specialization:
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-
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Type:
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Closed frame
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Material:
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Boxwood
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Facings:
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Celluliod
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Scale Length:
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25cm
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No of Scales:
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7
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Front Length:
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280mm
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Front Width:
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27.5mm
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Language:
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English
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Origin:
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Germany
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Date:
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c1910-12
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Features/Notes:
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Boxwood springs in well.
Normal (not railway track) scales, hence 'A' suffix to the the catalogue model number.
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Scales (colours as shown)
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Front:
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A [ B, C ] D
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Back:
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[ S, L, T ]
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Labels Left:
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-
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Labels Left:
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-
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Labels Right:
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-
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Labels Right:
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All, as scales
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Style:
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Normal
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Typeface:
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Serif
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Extensions:
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-
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Decimals:
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As units between 1 & 2 on C & D
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Gauge Marks:
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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
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Rulers:
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inch on top edge
cm on bottom edge
cm continuation in well for longer measurements
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Features/Notes:
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-
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Construction
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Stock:
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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
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Slide:
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Double sided
Celluliod faced on both sides
Front face width (mm) - 11.5
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Cursor:
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Aluminium frame, (pane missing).
Square window.
Centre riveted steel spring on top runner.
Width x Height (mm) - 30 x 31
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Printing (colours as shown)
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Stock:
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"365 * A.W. FABER.", "D.R. PATENT. No 206428." & "D.R.G.M. 371190." on front lower rail in the centre, sans-serif.
"MADE IN GERMANY" on front bottom rail towards the right, sans-serif.
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Slide:
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-
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Cursor:
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-
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Labels:
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On back, paper table featuring conversions and mathematical and physical constants.
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Instructions
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None
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Box (colours as shown)
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Style:
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Not present
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L x W x D mm:
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-
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Material:
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-
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Colour:
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-
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Construction:
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-
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Printing:
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-
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Labels:
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-
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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.
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