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Keywords from Image Description:
Fotothek df tg Festungsbau Zitadelle Bastion Contrescarpe Contregarde Kurtine. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Abbildung HHH Amsterdam Grundrisse von polygonalen Festungsanlagen mit Zitadellen Abwehreinrichtungen Papier Kupferstich cm Festungsbau Zitadelle Bastion Contrescarpe Contregarde Kurtine