NPRNTeitlMath O SaflePerthynasNPRN309162TeitlFoundry Terrace, No 16Math O Saflen/aPerthynasAssociated withNPRN29185TeitlFoundry Terrace, LlanidloesMath O Saflen/aPerthynasAssociated withNPRN40496TeitlThomas' Iron Works;Mills' Foundry;Railway Works, LlanidloesMath O Saflen/aPerthynasAssociated with
