Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Basic Open-Hearth Steel Industry Embraces Furnaces (article)
Article from the Iron Trade Review - September 29, 1927, pages 773-780. Black print on white paper. Includes two black & white printed photographs.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.