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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6010347
    Disgrifiad
    RCAHMW drawing (ink on linen) showing plan of Cefn Mine, Llannor, as published in Caerns Inventory vol III, fig 89.
    Enw Casgliad
    Drawings Collection
    Cyfrwng
    Graphic.
    Cychwynnwr
    RCAHMW