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    Nid oes gennych resi chwilio datblygedig. Ychwanegwch un trwy glicio ar y botwm '+ Ychwanegu Rhes'
    Digitized image of a drawing showing a coarse metal melting furnace, as published fig 617 from Tomlinson's 'Cyclopedia of Useful Arts, Manufacturing, Mining and Engineering' Vol I, 1854Further Information
    Manylion
    Hierarchaeth
    Safleoedd Cysylltiedig
    NPRNTeitlMath O SafleCasgliadauDelweddau
    NPRN34089TeitlHafod Copperworks, SwanseaMath O SafleGWAITH COPRCasgliadau54Delweddau21
    NPRN300184TeitlHafod and Morfa CopperworksMath O SafleGWAITH COPRCasgliadau404Delweddau146