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INTERIOR OF THE A.B. SIGNAL-BOX OF THE SOUTH EASTERN RAILWAY AT THE LONDON BRIDGE STATION, LONDON,
LZT13A30_365

INTERIOR OF THE A.B. SIGNAL-BOX OF THE SOUTH EASTE...

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

THE PARIS INTERNATIONAL EXHIBITION: MILITARY TELEG...

AT THE CRYSTAL PALACE ELECTRICAL EXHIBITION: 1. Improved Communication between Passengers and
LZT13A26_047

AT THE CRYSTAL PALACE ELECTRICAL EXHIBITION: 1. Im...