A W Faber 368

(25cm Scale, Electro)
Examples: c1906, c1907, c1907-8, c19081, c19082, c1910-11

Version Comparison
Five examples of the three versions of the model fully detailed below, differences summarised as follows:
Click on a column heading to jump down to version images and detailed description.
  c1905-6 c1907 c1907-8 c19081 c19082 c1908-11
Front Face: 280 x 27.5mm 285 x 26.5mm
LL2 & LL3 Scales: Top edge Bottom edge
Ruler: Bottom edge Top edge
Stock Form: Single piece 2-part
Bracing: - Longitudinal, metal
Stock Flex: Longditudinal slits Celluloid sprung
Slide Springs: In groove -
Bottom Edge: Right angle Bevel
Celluloid Fixing: - Partial wooden pins Wooden pins
Cursor Grooves: Top angled, bottom parallel Top parallel, bottom angled
Back Profile: Rebate, paper tables Flat, plain Rebate, paper tables
Width: 32mm 36mm
Cursor Profile: Angled top egde, straight bottom edge Straight top egde, angled bottom edge
Cursor Index: Hook top edge Hook bottom edge
Cursor Window: Round corners Square corners
Brand & Model: Brand only Brand & model
Tracking Nmemonics: Short text -
DRP Numbers: - Well
DRGM Labelling: Front, bottom centre Well
Origin Labelling: Front, bottom right Front, bottom centre
Click on the images for enlargements.
A W Faber 368 (c1906)
Image
Image Summary
System: Electro
Specialization: Electrical & Mechanical Engineers
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 11
Front Length: 280mm Front Width: 27.5mm
Language: English Origin: Bavaria
Date: c1906
Features/Notes: Unlabelled model. Version 1 scale layout with LL scales on top edge.  Bevel to top edge only.
Scales (colours as shown)
Front: LL2, LL3 / 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
28.7 on A & B
746 on A & B
W index on C for LL2 & LL3
Rulers: cm on bottom edge
Features/Notes: "Dynamo"/"Motor n=%" and "Volt" scales, labelled, in the well.
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, top edge cut angled from corner (DRGM 271169, 1906), bottom edge 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
Aluminium index edge at the left end (DRGM 247514, 1905) secured with one rivet.
Celluliod faced on both sides
Shorter than stock, front face length x width (mm) - 277 x 11.5
Cursor: Aluminium frame, glass pane.
Hooked cursor extension on top runner with chisel index edge for reading the scales on the top edge (DRGM 197393, 1903).
Angled top runner to fit bevel and cursor groove.
Rounded window.
Centre riveted steel spring on bottom runner.
Single central full length hairline.
Width x Height (mm) - 29 x 32 (top face)
Printing (colours as shown)
Stock: "A.W.FABER." serif and "D.R.G.M. 271169. & 247514." sans-serif on centre of front bottom rail.
"MADE IN BAVARIA." on front bottom rail towards the right, 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.
"K.W." at the right end of the A scale.
Slide: "mm2" & "H.P." at the left and right ends respectively of the B scale.
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 45 x 27
Material: Cardboard Colour: Black
Construction: 2 part, internal sleeve join.
Cloth covered.
Metal braced ends.
Printing: "A.W. FABER." and smaller underneath "MADE IN BAVARIA." on the front.
Labels: Large advertising on back. Gold on black, ornate borders.
"368" with solid border on white, on right end (ends damaged)
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 368 (c1907)
Image
Image Summary
System: Electro
Specialization: Electrical & Mechanical Engineers
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 11
Front Length: 285mm Front Width: 26.5mm
Language: English Origin: Bavaria
Date: c1907
Features/Notes: Unlabelled model. Version 1 scale layout with LL scales on top edge.  Bevel to top and bottom edges.
Scales (colours as shown)
Front: LL2, LL3 / 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
28.7 on A & B
746 on A & B
W index on C for LL2 & LL3
Rulers: cm on bottom edge
Features/Notes: "Dynamo"/"Motor n=%" and "Volt" scales, labelled, in the well.
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 and bottom edges.
High cursor grooves, top edge cut angled from corner (DRGM 271169, 1906), bottom edge cut parallel to front face.
Flat back.
Front, well, top and bottom edges celluloid faced, secured with wooden pins (DRGM 371190, 1908).
Length x Width x Height (mm) - 285 x 36 x 9
Slide: Double sided
Aluminium index edge at the left end (DRGM 247514, 1905) secured with one rivet.
Celluliod faced on both sides, secured with a single wooden pin at left end (DRGM 371190, 1908)
Shorter than stock, front face length x width (mm) - 280 x 11.5
Cursor: Aluminium frame, glass pane.
Hooked cursor extension on top runner with chisel index edge for reading the scales on the top edge (DRGM 197393, 1903).
Angled top runner to fit bevel and cursor groove.
Rounded window.
Centre riveted steel spring on bottom runner.
Single central full length hairline.
Width x Height (mm) - 29 x 30 (top face)
Printing (colours as shown)
Stock: "A.W.FABER." serif and "D.R.G.M. 271169. & 247514." sans-serif on centre of front bottom rail.
"MADE IN BAVARIA." on front bottom rail towards the right, 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.
"K.W." at the right end of the A scale.
Slide: "mm2" & "H.P." at the left and right ends respectively of the B scale.
Cursor: -
Labels: None
Instructions
None
Box (colours as shown)
Style: Travel case L x W x D mm: 295 x 43 x 17
Material: Leather Colour: Brown
Construction: Fold over flap.
Printing: None
Labels: None
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.
A W Faber 368 (c1907-8)
Image
Image Summary
System: Electro
Specialization: Electrical & Mechanical Engineers
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 11
Front Length: 285mm Front Width: 26.5mm
Language: English Origin: Bavaria
Date: c1907-8
Features/Notes: Unlabelled model. Version 1 scale layout with LL scales on top edge.  Bevel to top and bottom edges.
Scales (colours as shown)
Front: LL2, LL3 / 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
28.7 on A & B
746 on A & B
W index on C for LL2 & LL3
Rulers: cm on bottom edge
Features/Notes: "Dynamo"/"Motor n=%" and "Volt" scales, labelled, in the well.
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 and bottom edges.
High cursor grooves, top edge cut angled from corner (DRGM 271169, 1906), bottom edge cut parallel to front face.
Flat back.
Front, well, top and bottom edges celluloid faced, secured with wooden pins (DRGM 371190, 1908).
Length x Width x Height (mm) - 285 x 36 x 9
Slide: Double sided
Aluminium index edge at the left end (DRGM 247514, 1905) secured with one rivet.
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Shorter than stock, front face length x width (mm) - 280 x 11.5
Cursor: Aluminium frame, glass pane.
Hooked cursor extension on top runner with chisel index edge for reading the scales on the top edge (DRGM 197393, 1903).
Angled top runner to fit bevel and cursor groove.
Square window.
Centre riveted steel spring on bottom runner.
Single central full length hairline.
Width x Height (mm) - 29 x 30 (top face)
Printing (colours as shown)
Stock: "A.W.FABER." serif and "D.R.G.M. 271169. & 247514." sans-serif on centre of front bottom rail.
"MADE IN BAVARIA." on front bottom rail towards the right, 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.
"K.W." at the right end of the A scale.
Slide: "mm2" & "H.P." at the left and right ends respectively of the B scale.
Cursor: -
Labels: None
Instructions
None
Box (colours as shown)
Style: Rounded L x W x D mm: 295 x 45 x 27
Material: Cardboard Colour: Black
Construction: 2 part, internal sleeve join.
Cloth covered.
Metal braced ends.
Printing: "A.W. FABER." and smaller underneath "MADE IN BAVARIA." on the front.
Labels: Large advertising on back. Gold on black, ornate borders.
"368" with solid border on white, on right 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.
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 368 (c19081)
Image
Image Summary
System: Electro
Specialization: Electrical & Mechanical Engineers
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 11
Front Length: 285mm Front Width: 26.5mm
Language: English Origin: Bavaria
Date: c1908
Features/Notes: Unlabelled model. Version 1 scale layout with LL scales on top edge.  Bevel to top and bottom edges.
Scales (colours as shown)
Front: LL2, LL3 / 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
28.7 on A & B
746 on A & B
W index on C for LL2 & LL3
Rulers: cm on bottom edge
Features/Notes: "Dynamo"/"Motor n=%" and "Volt" scales, labelled, in the well.
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 and bottom edges.
High cursor grooves, top edge cut angled from corner (DRGM 271169, 1906), bottom edge 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) - 285 x 36 x 9
Slide: Double sided
Aluminium index edge at the left end (DRGM 247514, 1905) secured with one rivet.
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Shorter than stock, front face length x width (mm) - 280 x 11.5
Cursor: Aluminium frame, glass pane.
Hooked cursor extension on top runner with chisel index edge for reading the scales on the top edge (DRGM 197393, 1903).
Angled top runner to fit bevel and cursor groove.
Square window.
Centre riveted steel spring on bottom runner.
Single central full length hairline.
Width x Height (mm) - 29 x 30 (top face)
Printing (colours as shown)
Stock: "A.W.FABER." serif and "D.R.G.M. 271169. & 247514." sans-serif on centre of front bottom rail.
"MADE IN GERMANY." on front bottom rail towards the right, 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.
"K.W." at the right end of the A scale.
Slide: "mm2" & "H.P." at the left and right ends respectively of the B scale.
Cursor: -
Labels: None
Instructions
None
Box (colours as shown)
Style: Rounded L x W x D mm: 295 x 45 x 27
Material: Cardboard Colour: Black
Construction: 2 part, internal sleeve join.
Cloth covered.
Metal braced ends.
Printing: "A.W. FABER." and smaller underneath "MADE IN GERMANY." on the front.
Labels: Large advertising on back. Black on white, ornate borders.
Right end damaged.
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.
A W Faber 368 (c19082)
Image
Image Summary
System: Electro
Specialization: Electrical & Mechanical Engineers
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 11
Front Length: 285mm Front Width: 26.5mm
Language: English Origin: Bavaria
Date: c1908
Features/Notes: Version 2 scale layout with log log scales on bottom edge.  Bevel to top and bottom edges.
Scales (colours as shown)
Front: A [ B, C ] D \ LL2, LL3 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
28.7 on A & B
746 on A & B
W index on C for LL2 & LL3
Rulers: cm on top edge
Features/Notes: "Dynamo"/"Motor n=%" and "Volt" scales, labelled, in the well.
Construction
Stock: 2 part split stock joined with celluloid (DRGM 306107, 1907).
Left and right viewing cutouts with index marks, in back for reverse of slide.
Bevelled top and bottom edges.
High cursor grooves, bottom edge cut angled from corner (DRGM 271169, 1906), top edge 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) - 285 x 36 x 9
Slide: Double sided
Aluminium index edge at the left end (DRGM 247514, 1905) secured with one rivet.
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Shorter than stock, front face length x width (mm) - 280 x 11.5
Cursor: Aluminium frame, glass pane.
Hooked cursor extension on bottom runner with chisel index edge for reading the scales on the bottom edge (DRGM 197393, 1903).
Angled bottom runner to fit bevel and cursor groove.
Square window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 29 x 30 (top face)
Printing (colours as shown)
Stock: "368 * A.W.FABER." and "D.R.G.M. 271169. & 247514." on centre of front bottom rail, serif apart from "A.W.FABER." sans-serif.
"MADE IN BAVARIA." on front bottom rail towards the right, 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.
"K.W." at the right end of the A scale.
Slide: "mm2" & "H.P." at the left and right ends respectively of the B scale.
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: 295 x 45 x 22
Material: Cardboard Colour: Black
Construction: 2 part, internal sleeve join.
Cloth covered.
Metal braced ends.
Printing: "A.W. FABER." and smaller underneath "MADE IN BAVARIA." on the front.
Labels: Large red/green on white advertising label on back.
"368" with solid border on white, on right end (ends damaged)
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.
A W Faber 368 (c1910-11)
Image
Image Summary
System: Electro
Specialization: Electrical & Mechanical Engineers
Type: Closed frame
Material: Boxwood
Facings: Celluliod
Scale Length: 25cm No of Scales: 11
Front Length: 285mm Front Width: 26.5mm
Language: English Origin: Bavaria
Date: c1910-11
Features/Notes: Version 2 scale layout with log log scales on bottom edge.  Bevel to top and bottom edges.
Scales (colours as shown)
Front: A [ B, C ] D \ LL2, LL3 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
28.7 on A & B
746 on A & B
W index on C for LL2 & LL3
Rulers: cm on top edge
Features/Notes: "Dynamo"/"Motor n=%" and "Volt" scales, labelled, in the well.
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 and bottom edges.
High cursor grooves, bottom edge cut angled from corner (DRGM 271169, 1906), top edge 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) - 285 x 36 x 9
Slide: Double sided
Braced with longitudinal metal strips (DRP 206428, 1908)
Aluminium index edge at the left end (DRGM 247514, 1905) secured with one rivet.
Celluliod faced on both sides, secured with wooden pins (DRGM 371190, 1908)
Shorter than stock, front face length x width (mm) - 280 x 11.5
Cursor: Aluminium frame, glass pane.
Hooked cursor extension on bottom runner with chisel index edge for reading the scales on the bottom edge (DRGM 197393, 1903).
Angled bottom runner to fit bevel and cursor groove.
Square window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 29 x 30 (top face)
Printing (colours as shown)
Stock: "368 * A.W.FABER." and "MADE IN BAVARIA." on centre of front bottom rail, sans-serif.
"D.R. PATENT. No 206428." sans-serif and underneath "D.R.G.M. 247514. 271169. & 371190." serif, in the well on the right hand side.
"K.W." at the right end of the A scale.
Slide: "mm2" & "H.P." at the left and right ends respectively of the B scale.
Cursor: -
Labels: On back, paper table featuring conversions and mathematical and physical constants.
Instructions
Original "CALCULATING RULE FOR ELECTRICAL AND MECHANICAL ENGINEERS" instructions, tatty and delicate, can all be seen here.
Box (colours as shown)
Style: Rounded L x W x D mm: 295 x 45 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.
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.
Click on the images for enlargements.
Count Belmiro © Copyright March 2014 - August 2017
Design | HTML