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Keywords from Image Description:
Karlsborg. en Map showing the simplified southern front of Karlsborg fortress Sweden sv Plan ver Karlsborgs fstning med sin frenklade landfront Bastionerna har ersatts av slutvrn med kyrka drutanfr huvudvall med vallgrav frsvarad av tv kaponjrer II och III Utanfr dessa planeras tv blockhus Karta Krigsarkivet Norrman Karlsborgs