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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6323690
    Disgrifiad
    Photograph of Hafod Copperworks, Swansea: showing circular retaining wall for gas holder, to the north of Hafod Copperworks Locomotive Shed.
    Enw Casgliad
    Investigators' Photographs
    Cyfrwng
    Photo.
    Cychwynnwr
    Stephen R. Hughes
    Dyddiad
    2002-12-01