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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6491914
    Disgrifiad
    Colour slide produced by Colin Guile, captioned "Megalithic Stone Circle 2000BC. on Bwlch Gwyn 1,000ft (above Ysbyty Cynfyn)", dated 19/5/1973.
    Enw Casgliad
    Colin Guile Collection
    Cyfrwng
    Photo.
    Cychwynnwr
    Colin Guile
    Dyddiad
    1973-05-19