PENARTH SLATE QUARRY, CORWEN Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
PENARTH SLATE QUARRY, CORWEN Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
PEN-YR-ORSEDD SLATE QUARRY, NANTLLE VALLEY Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
OAKLEY SLATE MINE AND QUARRY;GLODDFA GANOL QUARRY Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
OAKLEY SLATE MINE AND QUARRY;GLODDFA GANOL QUARRY Type Item Uploaded by Royal Commission on the Ancient and Historical Monuments of Wales
