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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6283264
    Disgrifiad
    Copy neg, Foundation rock of dam. central portion of trench as exposed in June 1882. NA/MY/89/111e
    Enw Casgliad
    Edward Hubbard Collection
    Cyfrwng
    Photo.
    Dyddiad
    1882 to 1886