Moel Fferna slate quarry, Glyndyfrdwy.
Various photo of Bro Machno
A 'Biology' class at Ysgol y Sir,...
Volunteering for Liberty: International...
Photograph of Owen Roberts
Minllyn village & quarry ,1930s
Corporal Tegwyn Davies Jones, Royal Air Force...
Names of Dyffryn Nantlle Slate Quarries Artwork
Nantlle Railway tunnel, Dorothea Quarry
Dororthea Quarry Beam Engine
Inscription of JER with a partial date
Quarryman graffiti
Inscription J.T.H 1939
Penyrorsedd
Dorothea Quarry Boilers
LLANNERCH-Y-MOR LEAD SMELTING WORKS;NORTH...
