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    Archive Number
    6536626
    Description
    Black and white aerial photograph of Parc Gwyllt Hospital, taken by the Ordnance Survey on 20th July 1989 at an altitude of 7,900 feet. Grid reference SS9182. Print enlargement (c. 20") taken from 9" film roll.
    Collection Name
    Ordnance Survey Vertical Aerial Photography Collection
    Medium
    Photo.
    Originator
    Ordnance Survey
    Date
    1989-07-20