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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6429386
    Disgrifiad
    No9 slate mill (1859-1910), level 9 barracks, view from incline from 7 to 9, looking N, Rhosydd Slate Quarries complex.
    Enw Casgliad
    Investigators' Photographs
    Cyfrwng
    Photo.
    Cychwynnwr
    Stephen R. Hughes
    Dyddiad
    1996-09-01