| Iwa kalle Folienrechner | |
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Back |
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Sleeve |
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| Length | 15 cm |
| Number of scales | 8 |
| Country of origin | Germany |
| Country of manufacturing | Germany |
| Year of manufacturing | |
| 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: light blue plastic |
| Status of the manual | Is part of the sleeve |
| Collection number | 208 |
| Further comments | Kalle was for decades the major German manufacturer of diazo media. This slide rule could be used for various conversions with rolls of foils and films. |
