| Type: | Catalogue, product description and manual of the Doppelverant stereoscope. |
| Publisher: | Carl Zeiss Jena |
| Date: | c. 1903 |
| Language: | German |
| Pages: | 12 |
| Dimensions: | 19 x 11.5 cm |
Der Doppelverant
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| Type: | Catalogue, product description and manual of the Doppelverant stereoscope. |
| Publisher: | Carl Zeiss Jena |
| Date: | c. 1903 |
| Language: | German |
| Pages: | 12 |
| Dimensions: | 19 x 11.5 cm |
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