Alexander Glen's facsimile telegraph system, 1886. From a paper read to the United Service Institution, England, 15 January 1886. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 4682 px × 3730 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |