Signal box. Engraving of a section through a railway signal box in the mid-19th century. Railways at this time used a semaphore system,where the position of pole-mounted signals was used to pass information to train drivers. These signals were moved by wires which led to the signal box. The signalman pulled on these wires using 1.2-metre long levers | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3503 px × 4805 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |