In the search for small, easily portable photographic apparatus various devices have been invented. The Luders Brothers of Germany patented the photographic hat in 1886. The hat permitted the wearer t take photographs without being noticed. Unfortunately the accompanying article gave no indication as to how the apparatus worked. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source |
Bildgröße: | 3304 px × 3900 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |