CHT174666 Design for a Chappe telegraph station for one of the domes of the Louvre, Paris, early 19th century (pen & ink and w/c on paper) by French School, (19th century); Musee de la Poste, Paris, France; (add.info.: dessin de porte prevue sur le dome du Louvre; invented by Claude Chappe (1763-1805); an early telegraph system which consisted of a network of signage towers with mechanical arms which operated in relay and used a more complicated semaphore system; first message sent in 1793;); 穢 Archives Charmet; French, out of copyright.