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Keywords from Image Description:
Festung Ltzebuerg Grngewalder Front Detail vun der LefortKaart. Festung Ltzebuerg Ausschntt aus der Kaart vum Lefort Legend Av Gr Avance de PetitGrunewald Fort Obergrnewald Gr Ouvrage corne de Grunewald Thgn Bastion de Thngen Gr Gr Ouvrage de GrandGrunewald Fort Niedergrnewald Red Ol Redoute Olizy Ville et Forteresse