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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6074396
    Disgrifiad
    Drawing showing probable direction of water supply at Dol-Gun Blast Furnace, Dolgellau, Merioneth
    Enw Casgliad
    NMR Site Files
    Cyfrwng
    Graphic.