File:Dr Julius Neubronner patented a miniature pigeon camera activated by a timing mechanism, 1903.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:07, 22 August 2009 | 1,532 × 2,045 (1.1 MB) | Svajcr | {{Information |Description={{en|1=1903, Dr Julius Neubronner patented a miniature pigeon camera activated by a timing mechanism. Photograph of a photo in the National Air & Space Museum Spy Technology Section. }} {{cs|1=1903, Dr Julius Neubronner patento |
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