Sectional view of a telegraph tower using Chappe's
Sectional view of a telegraph tower using Chappe's (1763-1805) semaphore system, showing the method of moving the signalling arms. From Louis Figuier Les Merveilles de la Science, Paris, circa 1870. Engraving
Picture No
13907965
Media ID
48380441
Size
6000px x 11297px
(5.8MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive
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Chappes Figuier Merveilles Method Sectional Semaphore Signalling
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