Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Dinorwic Slate Quarry, plan
Dinorwic Quarry workshops. Plan of Blower Fan Room. Pelton Wheel House. Circular saw shed. Scale ¼" = 1'. Broken lines shows clearance.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.