Tower of the Chappe Telegraph, to the 'hell hole' located, French Heritage monument to Bailly
The Telegraph Chappe, aerial telegraphy system, worked from 1794 to 1844, date of the adoption of the electric telegraph. The first line created was Paris in Lille which included 16 posts and transmitted a signal in two minutes. The second was from Paris to Brest with the project, due to Therouart was presented and approved in 1794 * It was marked by two leagues in two leagues. The position of the hole of hell is the fourth from Paris. It is a square three-storey tower pierced by Windows.
Source: Ministry of Culture, France
Structural information
Tower of the Chappe Telegraph, to the 'hell hole' located, The Telegraph Chappe, aerial telegraphy system, worked from 1794 to 1844, date of the adoption of the electric telegraph. The first line created was Paris in (...) Tower of the Chappe Telegraph, to the 'hell hole' located, French Heritage monument to Baillybailly, yvelines
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