NPRNTeitlMath O SaflePerthynasNPRN260526TeitlRevetment Wall South West of Pwll Du Tunnel, BlaenavonMath O Saflen/aPerthynasConsists ofNPRN34365TeitlWatton Double Bridge, BreconMath O Saflen/aPerthynasAssociated withNPRN85124TeitlBrecknock and Abergavenny CanalMath O Saflen/aPerthynasAssociated with
