NPRNTeitlMath O SaflePerthynasNPRN23219TeitlGreaves Wharf WarehouseMath O Saflen/aPerthynasPart ofNPRN26540TeitlGreaves Wharf CottagesMath O Saflen/aPerthynasPart ofNPRN16619TeitlOakeley Slate Quarries Manager's House and Office, Oakeley's Wharf, PorthmadogMath O Saflen/aPerthynasPart ofNPRN23235TeitlOakeley Quarries Slate Warehouse;Porthmadog Maritime Museum, Oakeley Wharf, PorthmadogMath O Saflen/aPerthynasPart ofNPRN26591TeitlGreaves Wharf Manager's House & Office, or Old Harbour HouseMath O Saflen/aPerthynasPart of
