| Faber-Castell 348 System Dr. Winkel | |
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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 | 30 cm |
| Number of scales | 12 |
| Country of origin | France |
| Country of manufacturing | Germany |
| Year of manufacturing | 1927 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Status of the box | The pouch looks self made. |
| Status of the manual | Included is a typed French translation of teh manual. |
| Collection number | 68 |
| Further comments | The 348 is the first of the 48 series
of slide ules, meant to be used by metal workers to calculate e.g.
processing times for milling and lathing.
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