| Faber-Castell 67/39 (Variation 1) | |
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Front |
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Back |
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| Box | |
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| Length | 15 cm |
| Number of scales | 5 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1962 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Plastic |
| Type of cursor | Clear plastic |
| Status of the box | Normal signs of use |
| Type of box | Green artificial leather |
| Status of the manual | None |
| Collection number | 151 |
| Further comments |
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| Faber-Castell 67/39 (Variation 2) | |
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Front |
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Front open |
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Back |
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| Case | |
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| Box | |
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| Length | 15 cm |
| Number of scales | 6 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1973 |
| Status of the slide rule | Mint |
| Material of the slide rule | Plastic |
| Type of cursor | Clear plastic |
| Status of the box | Mint |
| Type of case | Real leather |
| Status of the manual | Mint (German) |
| Collection number | 184 |
| Further comments | This version of the 67/39 has an
interesting extra small scale on the front. It is unclear what its
purpose is. Most likely it has to do with the type of business that the
company ETA is in. The outer box is also quite unique. I have never seen it before. The green color was used by Faber-Castell in the fifties, but the slide rule is from a much later date. |
