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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6492140
    Disgrifiad
    Colour slide produced by Colin Guile, caption reads "Grogwynion Lead Works- open cast" dated 25/7/74.
    Enw Casgliad
    Colin Guile Collection
    Cyfrwng
    Photo.
    Cychwynnwr
    Colin Guile
    Dyddiad
    1974-07-25