| Faber-Castell 2/82 Novo-Duplex | ||
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Front |
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Back (version 1) |
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| Back (version 2) | ||
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Box |
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| Length | 33 cm | 33 cm |
| Number of scales | 24 | 22 |
| Country of origin | Canada | Netherlands |
| Country of manufacturing | Germany | Germany |
| Year of manufacturing | 1953 | 1962 |
| Status of the slide rule | Normal signs of use | Normal signs of use |
| Material of the slide rule | Plastic | Plastic |
| Status of the box | Light damage | Light damage |
| Status of the manual | None | None |
| Collection number | 29 | 35 |
| Further comments | This is an English version of the
2/82, having an inch-scale on the back. In the metal braces is written: "hospital"and "4 wing". On the bottom side of the rule is printed: D.B.P. Nr. 873 455
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Notice some minor differences:
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| Faber-Castell 2/82 Novo-Duplex (version 3) | ||
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Front |
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Back |
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| Ruler | ||
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Box |
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| Length | ||
| Number of scales | 24 | |
| Country of origin | Germany | |
| Country of manufacturing | Germany | |
| Year of manufacturing | 1968 | |
| Status of the slide rule | Normal signs of use | |
| Material of the slide rule | Plastic | |
| Status of the box | Light damage | |
| Status of the manual | Mint (German) | |
| Collection number | 125 | |
| Further comments | The main difference with
the 2 older versions is in the position and number of scales. Notice
also the soft green plastic protector of the braces.
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