Sending and receiving apparatus with battery box at base, Edison carbon telephone, 1890. Solid metal diaphragm. Wood engraving. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Ann Ronan Picture Library |
Bildgröße: | 2712 px × 3858 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |