Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
South Wales Coal Field Glamorganshire, plan
South Wales Coal Field Glamorganshire Area. Horizontal Section, Cefn Coed-Y-Cymmer to Pencoed by Henry K Jordan F.G.S Natural Scale 16 statute chains to one inch. South Wales Institute of engineers 1908 (copyright).
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.