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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    1 colour print showing one of the six main inlet valves at Dinorwig Power Station; collated by the former Central Office of Information.Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6210999
    Disgrifiad
    1 colour print showing one of the six main inlet valves at Dinorwig Power Station; collated by the former Central Office of Information.
    Cofnod Casglu
    COI - Central Office of Information Photographic Collection
    Cyfrwng
    Photo.
    Cychwynnwr
    Central Office of Information
    Dyddiad
    c. 1982