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canvas prints machine canvas prints equipment canvas prints apparatus canvas prints optical telegraph canvas prints semaphore canvas prints history canvas prints technology canvas prints communications canvas prints telecommunications canvas prints illustration canvas prints black-and-white canvas prints monochrome canvas prints 19th century canvas prints 1790s canvas prints 18th century canvas prints

photographs machine photos equipment photos apparatus photos optical telegraph photos semaphore photos history photos technology photos communications photos telecommunications photos illustration photos black-and-white photos monochrome photos 19th century photos 1790s photos 18th century photos

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Chappe telegraph system. Historical illustration of one of the optical telegraph stations established by French engineer Claude Chappe (1763-1805). In the 1790s, Chappe established a chain of 22 tower stations spanning the 193-kilometre stretch from Paris to Lille. Messages were transmitted between the stations using semaphore arms. A message could be sent between the two cities in under 6 minutes, rather than taking 30 hours by courier on horseback. Artwork from 'Electricite' (1911) by Max de Nansouty, part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier.

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