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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6018903
    Disgrifiad
    Plynlimon & Hafan Tramway; Photocopy of field notes and sketches by David Percival, dated 1973/4.
    Enw Casgliad
    Additional Information
    Cyfrwng
    Cartographic, Graphic, Text.
    Cychwynnwr
    David J. Percival
    Dyddiad
    1973