• Cymraeg
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    Archive Number
    6363031
    Description
    Black and white negatives, Resistivity Profile graphs, article extract, and reports relating to Dolaucothi, Rhandirmwyn, and Dolauhirion.
    Collection Record
    GDBJ - Professor G. D. Barri Jones Collection
    Medium
    1 file. Text, Photo, Graphic.
    Originator
    Prof G.D.B. Jones
    Date
    1968 to 1992