Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Collection of maps, plans, drgs re iron & steel ind.
Plan of the Green Vein Coal Pontyberem Collieries. Scale 2 chains to an inch
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.