NPRNTeitlMath O SaflePerthynasNPRN405083TeitlUpper Aqueduct and Tramway Bridge, Glyn Neath Black Powder Works, PontneddfechanMath O Saflen/aPerthynasConsists ofNPRN439TeitlGlyn Neath Black Powder Works, PontneddfechanMath O Saflen/aPerthynasPart ofNPRN405093TeitlTramway Bridge, Glyn Neath Black Powder Works, PontneddfechanMath O Saflen/aPerthynasConsists ofNPRN405056TeitlDr Bevans Tramroad, Glyn NeathMath O Saflen/aPerthynasAssociated with
