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    Archive Number
    6514969
    Description
    Black and white aerial photograph of Bwlch y Groes, taken by the Ordnance Survey on 3rd October 1974 at an altitude of 7,900 feet. Grid reference SN3746. Print enlargement (c. 20") taken from 9" film roll.
    Collection Name
    Ordnance Survey Vertical Aerial Photography Collection
    Medium
    Photo.
    Originator
    Ordnance Survey
    Date
    1974-10-03