Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Trydan (magazine)
Trydan. The magazine of the South Wales Electricity Board. Volume 5 No.5 October, 1965. 64 pages, stapled at centre.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.