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.
c1904-6 c1910-2
Stock Length: 26cm 28cm
Decimals: Tenths, units, 0.5's & 5's Units
Stock Form: Single piece 2-part
Stock Flex: Longitudinal slits Celluloid sprung
Bracing: - Longitudinal, metal
Celluliod Fixing: - Wooden pins
Cursor Window: Round cornders Square corners
Brand & Model: Brand only Both
Origin Labelling: Front, centre Front, right
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A W Faber 365A (c1906)
Image
Image Summary
System: Enhanced Mannheim
Specialization: -
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 7
Front Length: 260mm Front Width: 27.5mm
Language: English Origin: Germany
Date: c1906
Features/Notes: Boxwood springs in well.
Unlabelled model, normal (not railway track) scales, hence 'A' suffix to the the catalogue model number.
Scales (colours as shown)
Front: A [ B, C ] D Back: [ S, L, T ]
Labels Left: - Labels Left: -
Labels Right: - Labels Right: All, as scales
Style: Normal Typeface: Serif
Extensions: - Decimals: 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
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: 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.
Construction
Stock: 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
Slide: Double sided
Celluliod faced on both sides
Front face width (mm) - 11.5
Cursor: 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
Printing (colours as shown)
Stock: "A.W.FABER." and "MADE IN GERMANY." in centre of front bottom rail, sans-serif.
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: 270 x 45 x 25
Material: Cardboard Colour: Black
Construction: 2 part, internal sleeve join.
Cloth covered.
Printing: "A.W. FABER." and smaller underneath "MADE IN GERMANY." on the front.
Labels: Large advertising on back. Black on white, ornate borders.
Box ends damaged.
Detail Images
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A W Faber 365A (c1910-12)
Image
Image 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: Germany
Date: c1910-12
Features/Notes: Boxwood springs in well.
Normal (not railway track) scales, hence 'A' suffix to the the catalogue model number.
Scales (colours as shown)
Front: A [ B, C ] D Back: [ S, L, T ]
Labels Left: - Labels Left: -
Labels Right: - Labels Right: All, as scales
Style: Normal 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
Celluliod faced on both sides
Front face width (mm) - 11.5
Cursor: Aluminium frame, (pane missing).
Square window.
Centre riveted steel spring on top runner.
Width x Height (mm) - 30 x 31
Printing (colours as shown)
Stock: "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.
Slide: -
Cursor: -
Labels: On back, paper table featuring conversions and mathematical and physical constants.
Instructions
None
Box (colours as shown)
Style: Not present L x W x D mm: -
Material: - Colour: -
Construction: -
Printing: -
Labels: -
Detail Images
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