Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Coal in Britain Today (booklet)
content summary - financial information and graphs relating to productivity and coal output rates for the years 1947-64. 29 pages, illustrated throughout.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.