Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. Map of Nantyfyllon
Glamorgan Sheet XXVI.5, showing Coegnant Colliery. Map size 25", 1899 [2nd ed.]. Scale 1/2500 being 25.344 inches to a statute mile or 208.33 feet to one inch.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.