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.