Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
A Technical Survey of the Velindre Works of the Steel Company of Wales Limited (brochure)
Sheet Metal Industries - Special Issue. As well as technical survey the booklet contains advertisements for associated companies to the steel industry, i.e. engineers, contractors, construction firms. 102 pages with photographs throughout.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.