Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Electro-galvanising at Oakfield steel-wire works
Reprint from Iron & Coal Trades Review
4 pages : 10 black and white photos
Title continues "New system ensures reliable product"
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.