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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6033662
    Disgrifiad
    Abbey Mills, Blaenhonddu; Annotated copy of an undated section of Ordnance Survey 25" map.
    Enw Casgliad
    NMR Site Files
    Cyfrwng
    Cartographic.
    Cychwynnwr
    Mr Anthony J. Parkinson, Ordnance Survey