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Keywords from Image Description:
Bergfried. Bergfriedgrundrisse Otto Piper Burgenkunde Mnchen Otto Piper Schema eines fnfeckigen Bergfrieds br Nrnberg br Finstergrn br Altwolfstein br AltBechburg br Schema eines runden Bergfrieds mit Spitze gegen die Angriffsseite br halbrunder Bergfried PDold Der Berchfrit Bergfried Drawings of defensive walls Ruine