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    Archive Number
    6186760
    Description
    Pen y Gaer, Rhydlydan; RCAHMW drawing plotted from 1972 Ordnance Survey aerial photographs, produced by T.D.L. Williams, June 1983.
    Collection Record
    Drawings Collection
    Medium
    Cartographic.
    Originator
    T.D.L. Williams, RCAHMW
    Date
    1983-06-24