Penrhyn Slate Quarries near Bangor, N.W Type Item Uploaded by Llyfrgell Genedlaethol Cymru / The National Library of Wales
Penrhyn Slate Quarries, near Bangor Type Item Uploaded by Llyfrgell Genedlaethol Cymru / The National Library of Wales
The Penrhyn Slate Quarries Type Item Uploaded by Llyfrgell Genedlaethol Cymru / The National Library of Wales
