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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6499638
    Disgrifiad
    Two items - Ink on tracing paper drawings showing plan and section of Draethen Roman Mine. Both drawings after the Bristol Mining Club.
    Enw Casgliad
    GDBJ - Professor G. D. Barri Jones Collection
    Cyfrwng
    Graphic.
    Cychwynnwr
    Prof G.D.B. Jones