| Faber-Castell 394 | |
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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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Box |
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| Length | 29 cm |
| Number of scales | 10 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1932 |
| Status of the slide rule | Minimal signs of use |
| Material of the slide rule | Celluloid on wood |
| Type of cursor | Metal with glass |
| Status of the box | Minimal signs of use |
| Type of box | |
| Status of the manual | None |
| Collection number | 222 |
| Further comments | A special property of this slide rule is that the bottom of the well is bare wood, instead of celluloid. |
