Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Penrhiw Colliery, plan
Plan of Pen y Rhiw Colliery, Blackwood. 1 inch : 20 yards, dated 28 March 1821.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Amgueddfa Cymru
Plan of Pen y Rhiw Colliery, Blackwood. 1 inch : 20 yards, dated 28 March 1821.