| Faber-Castell 1/28 Super Business | |
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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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Top of the slide |
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Bottom of the slide |
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Cross section |
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| Length | 27 cm |
| Number of scales | 14 |
| Country of origin | United Kingdom |
| Country of manufacturing | Germany |
| Year of manufacturing | March 1951 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Type of cursor | |
| Status of the box | Normal signs of use |
| Status of the manual | None |
| Collection number | 110 |
| Further comments | English version of the 1/28 with an
inch scale on the top. The cursor is missing its bottom part.
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