Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Park Colliery, plan
Black print on brown paper. Section of Park Estate showing location and thickness of Rock Vein, Little Vein, Five Quarters Vein, Yard Vein, Pontyclerc Vein, Big Vein, Lower Five Quart Vein, Three Quarts Vein, Charcoal Vein, not dated.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.