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A W Faber "Castell" 375
(25cm Scale, System Rietz)
Examples: 1921, 1926, 1933, 1934
Version Comparison
Three versions of the model from early to late fully detailed below, differences summarised as follows:
Click on a column heading to jump down to version images and detailed description.
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1921 |
1926 |
1933 |
1934 |
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Front Length:
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280mm
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295mm
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Scale Style:
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Double railway
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Railway track
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Slide Tension:
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-
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Adjustment screws
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Slide Back Scales:
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[ S, L, T ]
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[ S, S&T, T ]
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Slide Back Scales Left Labels:
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All, as scales
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- |
All, as scales
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Typeface:
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Serif
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Sans-serif
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Scale Extensions:
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-
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Red
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p Gauge Mark:
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A & B
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A, B, C & D
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C & C1 Gauge Marks:
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C & D
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C
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r" & r' Gauge Marks:
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-
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C & D
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Measure in Well:
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-
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cm
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Width x Height:
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33 x 9mm
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34 x 11mm
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Cursor Form:
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Normal
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Sliding magnifier |
Normal
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Cursor Spring:
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Centre sprung
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Left end sprung
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"*" or "Scales":
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*
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Scales
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DRP Numbers:
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Full, well centre below split
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Abbreviated, well right below split
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Tracking Nmemonics:
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Short text
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-
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Origin Labelling:
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-
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Back centre bottom
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Click on the images for enlargements.
A W Faber "Castell" 375 (1921) |
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Summary
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System:
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Rietz
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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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Pearwood
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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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9
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Front Length:
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280mm
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Front Width:
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32mm
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Language:
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German
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Origin:
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-
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Date:
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1921, July
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Features/Notes:
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-
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Scales (colours as shown)
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Front:
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K, A [ B, C ] D, L
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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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All, as scales
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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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Railway track (double)
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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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cm on top edge
cm on bottom edge
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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 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 38 x 10
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Slide:
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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) - 12
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Cursor:
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Aluminium frame, glass pane.
Square window.
Centre riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 33 x 35
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Printing (colours as shown)
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Stock:
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"375 * 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.
"SYSTEM RIETZ" in the well above the split 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.
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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, very worn.
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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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Square
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L x W x D mm:
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320 x 50 x 23
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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.
Faced.
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Printing:
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"A.W. FABER" and underneath scales logo then "D.R.P." beneath that on the front.
Round indentations on the front either side of the opening.
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Labels:
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None seen (ends damaged and taped).
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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.
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Click on the images for enlargements.
A W Faber "Castell" 375 (1926) |
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|
Summary
|
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System:
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Rietz
|
|
Specialization:
|
-
|
|
Type:
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Closed frame
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|
Material:
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Pearwood
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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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9
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|
Front Length:
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280mm
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Front Width:
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32mm
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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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1926, March
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Features/Notes:
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Magnifying cursor with sliding half-cylinder lens.
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Scales (colours as shown)
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Front:
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K, A [ B, C ] D, L
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Back:
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[ S, S&T, 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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Railway track (double)
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Typeface:
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Serif
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|
Extensions:
|
-
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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
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|
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 38 x 10
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|
Slide:
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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) - 12
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Cursor:
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Aluminium frame, glass pane.
Magnifying cursor with sliding half-cylinder lens (DRP 450304, 1926).
Lens width x height x depth (mm) - 13 x 35 x 5,with beveled ends.
Angled steel(?) flanges attached to the top and bottom runners with 3 rivets each, to hold the lens and allow it to slide.
Square window.
Left end riveted steel spring on top runner.
Three eqidistant full length hairlines.
Width x Height (mm) - 41 x 37
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Printing (colours as shown)
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|
Stock:
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"375 * 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.
"SYSTEM RIETZ" in the well above the split 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.
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Slide:
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-
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Cursor:
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"S" stamped on the front of the top runner above the left hairline.
"S" stamped on the front of the top runner above the centre hairline.
"MADE IN BAVARIA" stamped on the back of the top runner, sans-serif.
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Labels:
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On back, paper table featuring conversions and mathematical and physical constants, worn.
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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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Colour:
|
-
|
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Construction:
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-
|
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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.
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 "Castell" 375 (1933) |
|
|
Summary
|
|
System:
|
Rietz
|
|
Specialization:
|
-
|
|
Type:
|
Closed frame
|
|
Material:
|
Pearwood
|
|
Facings:
|
Celluliod
|
|
Scale Length:
|
25cm
|
No of Scales:
|
9
|
|
Front Length:
|
295mm
|
Front Width:
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32mm
|
|
Language:
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English
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Origin:
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Bavaria
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Date:
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1933, November
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Features/Notes:
|
-
|
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Scales (colours as shown)
|
|
Front:
|
K, A [ B, C ] D, L
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Back:
|
[ S, S&T, T ]
|
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
|
Style:
|
Railway track
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Typeface:
|
Sans-serif
|
|
Extensions:
|
A, B, C & D beyond 1 & 10 in red
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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
r" (2063) on C & D
r' (3438) on C & D
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Rulers:
|
inch on top edge
cm on bottom edge
cm continuation in well above the split for longer measurements
|
|
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) - 295 x 39 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) - 12
|
Cursor:
|
Aluminium frame, glass pane.
Extra wide.
Square window.
Left end riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 41 x 35
|
|
Printing (colours as shown)
|
|
Stock:
|
"375" + scales logo + "A.W.FABER" + ""CASTELL"" between lying castles in the centre of well below the split, sans-serif.
"D.R.P." in the well below the split towards the right, sans-serif.
"SYSTEM RIETZ" in the well below the split on the right, sans-serif.
"MADE IN BAVARIA." on the bottom centre of the back, sans-serif.
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|
Slide:
|
-
|
|
Cursor:
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"MADE IN BAVARIA" stamped on the bottom edge, sans-serif.
"2" stamped on the top edge
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|
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:
|
305 x 50 x 20
|
|
Material:
|
Cardboard
|
Colour:
|
Black
|
|
Construction:
|
2 part, internal sleeve join.
Faced.
|
|
Printing:
|
scales + "A.W. FABER" logo then underneath reverse printed "CASTELL", then underneath spaced out "D.", "R." and "P." on the front.
Round indentations on the front either side of the opening.
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|
Labels:
|
"375" with "MADE IN BAVARIA" smaller underneath on black, 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.
A W Faber "Castell" 375 (1934) |
|
|
Summary
|
|
System:
|
Rietz
|
|
Specialization:
|
-
|
|
Type:
|
Closed frame
|
|
Material:
|
Pearwood
|
|
Facings:
|
Celluliod
|
|
Scale Length:
|
25cm
|
No of Scales:
|
9
|
|
Front Length:
|
295mm
|
Front Width:
|
32mm
|
|
Language:
|
English
|
Origin:
|
Bavaria
|
|
Date:
|
1934, June
|
|
Features/Notes:
|
-
|
|
Scales (colours as shown)
|
|
Front:
|
K, A [ B, C ] D, L
|
Back:
|
[ S, S&T, T ]
|
|
Labels Left:
|
-
|
Labels Left:
|
All, as scales
|
|
Labels Right:
|
-
|
Labels Right:
|
All, as scales
|
|
Style:
|
Railway track
|
Typeface:
|
Sans-serif
|
|
Extensions:
|
A, B, C & D beyond 1 & 10 in red
|
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
r" (2063) on C & D
r' (3438) on C & D
|
Rulers:
|
inch on top edge
cm on bottom edge
cm continuation in well above the split for longer measurements
|
|
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).
Tension adjustment screws in bottom edge (DRP 365637, 1922).
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) - 295 x 39 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) - 12
|
Cursor:
|
Aluminium frame, glass pane.
Extra wide.
Square window.
Left end riveted steel spring on top runner.
Single central full length hairline.
Width x Height (mm) - 41 x 35
|
|
Printing (colours as shown)
|
|
Stock:
|
"375" + scales logo + "A.W.FABER" + ""CASTELL"" between lying castles in the centre of well below the split, sans-serif.
"D.R.P." in the well below the split towards the right, sans-serif.
"SYSTEM RIETZ" in the well below the split on the right, sans-serif.
"MADE IN BAVARIA." on the bottom centre of the back, sans-serif.
|
|
Slide:
|
-
|
|
Cursor:
|
"MADE IN BAVARIA" stamped on the bottom edge, sans-serif.
"2" stamped on the top edge
|
|
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:
|
310 x 45 x 17
|
|
Material:
|
Cardboard
|
Colour:
|
Black
|
|
Construction:
|
2 part, internal sleeve join.
Faced.
|
|
Printing:
|
scales + "A.W. FABER" ""CASTELL"" logo on the front.
Round indentations on the front either side of the opening.
|
|
Labels:
|
"375" with "MADE IN BAVARIA" smaller underneath on black, 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.
|
|
