| Dennert & Pape Eisenbeton | |
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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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| Length | 27 cm |
| Number of scales | 12 |
| Country of origin | Netherlands |
| Country of manufacturing | Germany |
| Year of manufacturing | 1922 |
| Status of the slide rule | Normal signs of use |
| Material of the slide rule | Celluloid on wood |
| Type of cursor | Metal with glass |
| Status of the box | Normal signs of use |
| Type of box | Red carton |
| Status of the manual | None |
| Collection number | Sold again |
| Further comments | This is a very rare Eisenbeton slide
rule of Dennert & Pape. I have not been able to find this particular
type anywhere on the Internet.
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