Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Plymouth Iron Works, plan
Plan of Duffryn furnaces Plymouth Iron works. Drawn by R.Heppell 1861, traced by A Williams 1966, scale 20 feet to the inch
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.