Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Mining equipment, lantern slide
Glass slides illustrating mining equipment. Table 3. List of plants in use in the South Western Division. National Coal Board utilising hydraulic equipment in October 1963.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.