Telegraph machines: the telegraph on the Louvre in Paris 1, and the telegraph at Lille showing the mechanism for moving the arms and an observer with telescope dictating to a secretary 2. Handcoloured copperplate engraving by J. Goetz from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1802.

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Size: 4713px × 5866px
Photo credit: © Florilegius / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arms, bertuch, bilderbuch, book, children, communications, copperplate, educational, encyclopedia, engraving, friedrich, fur, goetz, handcoloured, history, illustration, johann, kinder, lille, louvre, machine, mechanism, natural, observer, paris, picture, roof, secretary, technology, telegraph, telescope