Graen - Mary King Sarah
Names of Dyffryn Nantlle Slate Quarries Artwork
Memories of Dyffryn Nantlle, John Gruffydd...
Memories of Dyffryn Nantlle (3)
Memories of Dyffryn Nantlle (2)
Memories of Dyffryn Nantlle
Hanes y Llan
Postcards of Pembroke Dock Heritage Centre
Nantlle Railway tunnel, Dorothea Quarry
Dorothea Quarry Graffiti
Dororthea Quarry Beam Engine
Inscription of JER with a partial date
excavation at 27 Caroline St, Fernhill,...
Penyrorsedd
Dorothea Quarry Boilers
underground in Dinas Silica mine
underground at Dinas Silica Mine
Underground at Dinas Silica Mine