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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6016202
    Disgrifiad
    Photo survey of Breakwater Quarry and Brickworks, Holyhead, comprising twenty six black and white prints.
    Enw Casgliad
    NMR Site Files
    Cyfrwng
    Photo.
    Cychwynnwr
    Mr Anthony J. Parkinson
    Dyddiad
    1987