NPRNTeitlMath O SaflePerthynasNPRN85176TeitlHirwaun Ironworks: Furnace No.4Math O Saflen/aPerthynasConsists ofNPRN85173TeitlHirwaun Ironworks: Furnace No.1Math O Saflen/aPerthynasConsists ofNPRN85175TeitlHirwaun Ironworks: Furnace No.3Math O Saflen/aPerthynasConsists ofNPRN85174TeitlHirwaun Ironworks: Furnace No.2Math O Saflen/aPerthynasConsists ofNPRN34640TeitlHirwaun Ironworks: Glover's Tramroad BridgeMath O Saflen/aPerthynasAssociated withNPRN34847TeitlHirwaun Ironworks: Tramroad CausewayMath O Saflen/aPerthynasAssociated with
