Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. Map of Cymmer
Glamorgan Sheet XXVI.1, showing Cymmer, Dyffryn Rhondda Colliery [disused] and Ty-Gwyn-Bach Colliery [disused]. Map size 25", rev.1914. 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.