Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Arrael Griffin Colliery, section
Levelling Section along Big Vein main Arrael Griffin Colliery. Scale: horizontal: twenty feet to one inch vertical: ten feet to one inch. Levelled and drawn by Edmund Price March 6th 1921.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.