1Sauerlaender, 2 months ago to architecture From 1833 to 1848, this building in Cologne-Flittard served as an optical telegraph for state dispatches - via 61 stations between Koblenz and Berlin. Transmission between Cologne and Berlin took around two hours. (March 2024) (Foto: © Rüdiger Benninghaus) #Kommunikation, #Telegrafie, #optischer_Telegraf, #Architektur, #architecture, #Köln_Flittard image/jpeg image/jpeg
From 1833 to 1848, this building in Cologne-Flittard served as an optical telegraph for state dispatches - via 61 stations between Koblenz and Berlin. Transmission between Cologne and Berlin took around two hours. (March 2024) (Foto: © Rüdiger Benninghaus) #Kommunikation, #Telegrafie, #optischer_Telegraf, #Architektur, #architecture, #Köln_Flittard
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