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    • HOC - Hydrographic Office Chart Collection
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6221474
    Disgrifiad
    Scanned images of original printed Admiralty charts of Welsh waters.
    Cofnod Casglu
    HOC - Hydrographic Office Chart Collection
    Cyfrwng
    65 digital image files. Cartographic.
    Cychwynnwr
    Hydrographic Office
    Dyddiad
    c. 1830 to 1965