Operator sending a message on a Morse electric printing telegraph, 1887. He is tapping out the message with a key using the code developed by Samuel Morse and Alexander Bain. Under the table are wet cells (batteries) supplying electricity. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 3222 px × 3254 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |