NPRNTeitlMath O SaflePerthynasNPRN85880TeitlLeighton Gas Works, Retort HouseMath O Saflen/aPerthynasConsists ofNPRN85881TeitlLeighton Gas Works, Gas HolderMath O Saflen/aPerthynasConsists ofNPRN85833TeitlLeighton Estate, near WelshpoolMath O Saflen/aPerthynasPart of
