| Faber-Castell 373 | |
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Front |
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Back |
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Front without slide |
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Back of the slide |
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Sleeve |
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| Length | 12 cm |
| Number of scales | 5 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1931 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid, re-inforced with brass wires |
| Type of cursor | Missing |
| Status of the box | Normal signs of use |
| Type of box | Black fabric sleeve |
| Status of the manual | None |
| Collection number | 67 |
| Further comments | The cross section of this slide rule
is the same as of the 372. Most likely the cursor will be also the same. Apparanly Facber-Castell already made special promotial versions of their 15 cm slide rules in 1931. This particular one was produced for Hummel&Baumann (Nürnberg), Tief- und Hochbau-Unternehmung.
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