NPRNTeitlMath O SaflePerthynasNPRN91742TeitlPenygist Lead Mine, PontrhydygroesMath O Saflen/aPerthynasAssociated withNPRN33881TeitlLevel Fawr Yard; Probert's Yard, PontrhydygroesMath O Saflen/aPerthynasPart ofNPRN33874TeitlGlogfawr Mine;Lisburne Lead & Silver MinesMath O Saflen/aPerthynasAssociated withNPRN33873TeitlGlogfach Mine;Lisburne Lead & Silver MinesMath O Saflen/aPerthynasAssociated withNPRN33890TeitlLogaulas Lead Mine,Lisburne Mine;LogylasMath O Saflen/aPerthynasAssociated with
