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Telegraphy locomotives. Inside the car during operation, 1855. Engraving
LZT13A28_483

Telegraphy locomotives. Inside the car during oper...

THE PARIS INTERNATIONAL EXHIBITION: MILITARY TELEGRAPHY AND SIGNALLING: CAPTAIN COLOMB'S SIGNAL-BOX
LZT13A05_346

THE PARIS INTERNATIONAL EXHIBITION: MILITARY TELEG...