NPRNTeitlMath O SaflePerthynasNPRN33881TeitlLevel Fawr Yard; Probert's Yard, PontrhydygroesMath O Saflen/aPerthynasAssociated withNPRN33880TeitlLevel Fawr Adit Portal, Probert's Level Fawr Adit Portal, PontrhydygroesMath O Saflen/aPerthynasAssociated withNPRN33874TeitlGlogfawr Mine;Lisburne Lead & Silver MinesMath O Saflen/aPerthynasAssociated withNPRN33873TeitlGlogfach Mine;Lisburne Lead & Silver MinesMath O Saflen/aPerthynasAssociated with
