Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Bethesda Slate Quarries (postcard)
Black and white postcard (towards south view) illustrating the Penrhyn Quarry, Bethesda.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Black and white postcard (towards south view) illustrating the Penrhyn Quarry, Bethesda.