• English
    •    Hygyrchedd

    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    SJSHC_01_41
    Disgrifiad
    Bwlch Gwyn mine - maps, plans and drawings.
    Enw Casgliad
    SJSHC - Simon J. S. Hughes Collection
    Cyfrwng
    Paper, graphic, cartographic.
    Cychwynnwr
    Simon J. S. Hughes