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Keywords from Image Description:
Frankfurt Am MainStadtbefestigungMauer um fraenkische KernsiedlungRavenstein. en Frankfurt on the Main Position of the partially proven franconian curtain wall around the Samstagsberg projected upon city map of de Frankfurt am Main Lage des teilweise nachgewiesenen frnkischen Mauerrings um den Samstagsberg projiziert auf einen Stadtplan