NPRNTeitlMath O SaflePerthynasNPRN16855TeitlPenrhyn Hall, South LodgeMath O Saflen/aPerthynasAssociated withNPRN16619TeitlOakeley Slate Quarries Manager's House and Office, Oakeley's Wharf, PorthmadogMath O Saflen/aPerthynasAssociated withNPRN16604TeitlPenrhyn Old Hall, North LodgeMath O Saflen/aPerthynasAssociated with
