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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6507582
    Disgrifiad
    Ordnance Survey large print collection comprising black and white enlargements (c.20") taken from 9" film rolls. Filed in alphabetical order according to featured town, community or feature.
    Enw Casgliad
    Ordnance Survey Vertical Aerial Photography Collection
    Cyfrwng
    Photo.
    Cychwynnwr
    Ordnance Survey
    Dyddiad
    1963 to 1997