| Faber-Castell 8/30 | |
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| Diameter | 10 cm |
| Number of scales | 3 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Plastic |
| Type of cursor | Plastic |
| Status of the box | Normal signs of use |
| Type of box | PVC |
| Status of the manual | Mint, German version |
| Collection number | 232 |
| Further comments | A simple circular slide rule meant for administrative calculations. |
