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    Manylion
    Delweddau
    Safleoedd Cysylltiedig
    Archifau Cysylltiedig
    NPRNTeitlMath O SaflePerthynasNPRN505546TeitlChwarel Fawr, Quarry Building IIMath O Saflen/aPerthynasConsists ofNPRN505542TeitlChwarel Fawr, Labourers Shelter IIMath O Saflen/aPerthynasConsists ofNPRN505585TeitlChwarel Fawr, Quarry BuildingsMath O Saflen/aPerthynasConsists ofNPRN505584TeitlChwarel Fawr, Trial Mine IIMath O Saflen/aPerthynasConsists ofNPRN505595TeitlChwarel Fawr, Trial Mine IIIMath O Saflen/aPerthynasConsists ofNPRN505547TeitlChwarel Fawr, Tramway IMath O Saflen/aPerthynasConsists ofNPRN505597TeitlChwarel Fawr, Quarry Building IVMath O Saflen/aPerthynasConsists ofNPRN505596TeitlChwarel Fawr, Labourers Shelter VIMath O Saflen/aPerthynasConsists ofNPRN505594TeitlChwarel Fawr, Spoil HeapsMath O Saflen/aPerthynasConsists ofNPRN505591TeitlChwarel Fawr, TrackwayMath O Saflen/aPerthynasConsists ofNPRN505592TeitlChwarel Cefn Du, Slate Quarry IIMath O Saflen/aPerthynasConsists ofNPRN505550TeitlChwarel Fawr, Tramway IIIMath O Saflen/aPerthynasConsists ofNPRN505540TeitlChwarel Fawr, Wall IIMath O Saflen/aPerthynasConsists ofNPRN505536TeitlChwarel Fawr, Spoil Heap IMath O Saflen/aPerthynasConsists ofNPRN505580TeitlChwarel Fawr, Labourers Shelter IVMath O Saflen/aPerthynasConsists ofNPRN505543TeitlChwarel Fawr, Labourers Shelter IIIMath O Saflen/aPerthynasConsists ofNPRN505539TeitlChwarel Fawr, Labourers Shelter IMath O Saflen/aPerthynasConsists ofNPRN505548TeitlChwarel Fawr, Tramway IIMath O Saflen/aPerthynasConsists ofNPRN505582TeitlChwarel Fawr, Labourers SheltersMath O Saflen/aPerthynasConsists ofNPRN505545TeitlChwarel Fawr, Wall IVMath O Saflen/aPerthynasConsists ofNPRN505586TeitlChwarel Fawr, Tramway Tunnel PortalMath O Saflen/aPerthynasConsists ofNPRN505583TeitlChwarel Fawr, Quarry Building IIIMath O Saflen/aPerthynasConsists ofNPRN505541TeitlChwarel Fawr, Wall IIIMath O Saflen/aPerthynasConsists ofNPRN505544TeitlChwarel Fawr, Quarry Building IMath O Saflen/aPerthynasConsists ofNPRN505581TeitlChwarel Fawr, Trial Mine IMath O Saflen/aPerthynasConsists ofNPRN505537TeitlChwarel Fawr, Wall IMath O Saflen/aPerthynasConsists of