Rear view of Charles Wheatstone's electric (railway) telegraph, 1850. Showing its connection OT lines running beside the railway track. From Illustrations of Natural Philosophy by John Reynolds. (London, 1850). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 3390 px × 5154 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |