The use of telegraphy advanced with the advancement of the railroad, because the telegrapher's primary duty was maintaining communication between the train dispatcher, who was usually many miles away, and trains and the whole rail system. He copied train orders and messages for the train crews and reported to the dispatcher the passing of trains. The telegrapher was the eyes and ears of the train dispatcher. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Science Source |
Bildgröße: | 3750 px × 3691 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |