NPRNTeitlMath O SaflePerthynasNPRN91587TeitlTower Drift Mine, HirwaunMath O Saflen/aPerthynasAssociated withNPRN91586TeitlTower Colliery;No. 4 Colliery, HirwaunMath O Saflen/aPerthynasAssociated withNPRN85007TeitlTower (Old) Colliery, HirwaunMath O Saflen/aPerthynasAssociated with