| Faber-Castell 57/87 Rietz Schul-Rechenstab (Var 1) | |
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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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| Outer box | |
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| Length | 30 cm |
| Number of scales | 11 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | 1965 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Plastic |
| Type of cursor | Clear plastic |
| Status of the box | Slightly damaged |
| Status of the manual | None |
| Collection number | 11 |
| Further comments |
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| Faber-Castell 57/87 Rietz Schul-Rechenstab (Var 2) | |
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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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 |
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| Outer box | |
 |
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| Length | 30 cm |
| Number of scales | 11 |
| 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 |
| Status of the manual | Mint (German) |
| Collection number | 66 |
| Further comments | This version of the 57/87 was
manufactured in Switserland.The differences with variation 1 are minor:
the boxes and the color of the text on the cursor.
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