NPRNTeitlMath O SaflePerthynasNPRN91676TeitlHafod Red Brick Works: Clay PitMath O Saflen/aPerthynasAssociated withNPRN40776TeitlHafod Red Brick Works;Dennis Ruabon Brickworks, RhosllanerchrugogMath O Saflen/aPerthynasPart ofNPRN91678TeitlHafod Red Brick Works Railway: TunnelMath O Saflen/aPerthynasConsists of
