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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6426968
    Disgrifiad
    Penrhyn Slate Quarry, Water balance lift: Photo survey comprising 1 B&W print taken by S. R. Hughes, June 2001.
    Enw Casgliad
    Investigators' Photographs
    Cyfrwng
    1 print. Photo.
    Cychwynnwr
    Stephen R. Hughes
    Dyddiad
    2001-06