This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Wallhambg.jpeg Hamburg map Hamburg historischtopographische und baugeschichtliche Mitteilungen Meissner Verlag Hamburg author PDold Old maps of Hamburg Maps of HamburgAltstadt Maps of HamburgHammerbrook Maps of HamburgNeustadt Maps of HamburgSternschanze Maps of HamburgSt Georg Fortifications in Germany Hamburg Wallanlagen