Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
South Wales coalfield, plan
Vertical sections of the South Wales Coalfield. Includes Swansea and Neath District, Tondu District, Ogmore-Fach District, Monmouthshire Pen-Y-Fan District and Forest of Dean. Scale 100 feet to one inch.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.