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    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    Rhif Archif
    6028093
    Disgrifiad
    Pwll Du Tramroad Tunnel; architect's drawings received in the course of Emergency Recording case ref no ER/MM/99/003, filed in nprn order.
    Enw Casgliad
    ERC - Emergency Recording Collection
    Cyfrwng
    Cartographic.
    Cychwynnwr
    CADW
    Dyddiad
    c. 1999