| Faber-Castell 1/54 Darmstadt 400g | |
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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 rule |
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| Box | |
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| Length | 30 cm |
| Number of scales | 13 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1967 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Type of cursor | Clear plastic |
| Status of the box | Normal signs of use |
| Status of the manual | None |
| Collection number | 165 |
| Further comments | Faber-Castell made a number of slide
rules where the goniometric functions were based on a 400 degree circle,
instead of the usual 360 degree circle. Especially surveyors used the
400 degree system. This is the 400 degree version of the 1/54.
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