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Fotothek df tg Festungsbau Bastion Kurtine Contrescarpe Redan Ravelin. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Abbildung XXX Amsterdam Grundrisse und Schnitte polygonaler Festungsbauten Papier Kupferstich cm Festungsbau Bastion Kurtine Contrescarpe Redan Ravelin ppn Druck Deutsche Fotothek gefrdert von