Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Coal Board, report
Report titled 'National Coal Board. Progress in 1962' detailing output and productivity rates of the British coalfield. Three pages, stapled.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.