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    Archive Number
    6514436
    Description
    Black and white aerial photograph of Cefn Du quarry, taken by the Ordnance Survey on 19th June 1970 at an altitude of 7500 feet. Grid reference SH5559. Print enlargement (c. 20") taken from 9" film roll.
    Collection Name
    Ordnance Survey Vertical Aerial Photography Collection
    Medium
    Photo.
    Originator
    Ordnance Survey
    Date
    1970-06-19