Morse telegraphy, Cincinnati, Ohio, USA, 1859. The public reception room where telegraph messages could be sent and received. From The Telegraph Manual' by TP Shaffner. (New York 1859). Credit Smithsonian Institution, Washington DC. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 5350 px × 3264 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |