1Sauerlaender, 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