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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6255742
    Disgrifiad
    Vertical air photo showing north fort and excavations in progress on Isthmus gate.
    Enw Casgliad
    Additional Information
    Cyfrwng
    Photo.
    Cychwynnwr
    Royal Air Force
    Dyddiad
    1933 to 1934