Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Bryncoch Main Colliery, plan
Plan of Bryncoch Main Colliery showing present workings and old pits to south crop (copy of plan circa 1873) Scale : 8 chains to 1 inch
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.