Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
National Coal Board, report
Full title - National Coal Board South Western Division, No.4 (Aberdare) Area. General Manager's Report. Year Ended 28th December 1957. 42 page report with appendices.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.