Picture No | 10150558 |
Date | 1875 |
Description | AMERICAN SIGNAL BOX |
Details |
The interior of a signal box using Saxby and Farmer's system of switches and signals. The standing man shifts the levers, his colleague uses the telegraph.
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Source | Untitled in the Scientific American, 3 April 1875 |
Credit | Mary Evans Picture Library |
Restrictions |
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