A French Signal Corps with heliographs, telescopes and flags
A French Signal Corps with heliographs, telescopes and telegraph flags
Picture No
12904515
Media ID
45763789
Size
5170px x 3253px
(2.0MB)
Credit
Mary Evans / Grenville Collins Postcard Collection
Source
Unattributed photograph on a postcard
Date
circa 1909
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Heliograph Oct19 Signaling Telegraphy Telescope Telescopes Tripod Tripods
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