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6 results for: flag signal

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A signalman waving his flag and blowing a whistle to get attention of an oncoming train
ARP23A18_117

A signalman waving his flag and blowing a whistle ...

Primrose Hill Tunnel, on the London and Birmingham Railway line
ARP23A18_337

Primrose Hill Tunnel, on the London and Birmingham...

Photograph of a tank being used during World War Two
ARP18A27_389

Photograph of a tank being used during World War T...

Aerial Telegraph: Naval Semaphore
ARP15A00_357

Aerial Telegraph: Naval Semaphore

World War One US Army Recruitment poster by Michael P. Whelan
ARP17A21_102

World War One US Army Recruitment poster by Michae...

Sending a semaphore signal using flags
ARP07104_460001073

Sending a semaphore signal using flags