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    Archive Number
    6516757
    Description
    Black and white aerial photograph of Porth-y-rhyd, taken by the Ordnance Survey on 22nd April 1987, at an altitude of 8,000 feet. Grid reference SN5115. Print enlargement (c. 20") taken from 9" film roll.
    Collection Record
    Ordnance Survey Vertical Aerial Photography Collection
    Medium
    Photo.
    Originator
    Ordnance Survey
    Date
    1987-04-22