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Keywords from Image Description:
Frankfurt Am MainZeilReichspostgebaeudeFernmeldeturm. en Frankfurt on the Main Telecommunications tower in the courtyard of the Reichspostgebaeude building of the imperial post at the Zeil de Frankfurt am Main Fernmeldeturm im Innenhof des Reichspostgebudes an der Zeil Kaiserliche OberPostdirection Bearb Post und Telegraphie in Frankfurt