Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Folder
Folder containing various documents and surveyors records relating to 'Productivity Deal Weekly Advances', Big Pit, Blaenavon Mine, 1960-1980.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.