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    •    Hygyrchedd

    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6198200
    Disgrifiad
    Penrhyn Slate Quarry; photo survey comprising five black and white photographs, taken by RCAHMW, undated.
    Enw Casgliad
    NMR Site Files
    Cyfrwng
    Photo.
    Cychwynnwr
    RCAHMW