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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6202409
    Disgrifiad
    Collection of reports and papers relating to site throughout Wales, transferred to RCAHMW from Ordnance Survey.
    Enw Casgliad
    Ordnance Survey Collection
    Cyfrwng
    Multiple boxes.