Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Dinorwic Quarry Workshops, Plan
Dinorwic Quarry Workshops, fitting shops 1 and 2, erecting shop, scale ¼" - 1' broken line showing clearance. October 70 R.G.K
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.