NPRNTeitlMath O SaflePerthynasNPRN33505TeitlMaerdy Colliery;Mardy CollieryMath O Saflen/aPerthynasAssociated withNPRN91588TeitlTower Graig Level, HirwaunMath O Saflen/aPerthynasAssociated withNPRN91586TeitlTower Colliery;No. 4 Colliery, HirwaunMath O Saflen/aPerthynasPart ofNPRN85007TeitlTower (Old) Colliery, HirwaunMath O Saflen/aPerthynasAssociated with
