| Faber-Castell 392 | |
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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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Bottom of the slide |
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| Length | 30 cm |
| Number of scales | 12 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1920 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Type of cursor | Glass with aluminium |
| Status of the box | None |
| Type of box | |
| Status of the manual | None |
| Collection number | 128 |
| Further comments | On the back is stamped the name "H. Becker". |
