Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Cwmgwili Colliery, plan
Full title - Cwmgwili Colliery. I hereby specify the system of support to be adopted for the proper control of movement of roof during floor cutting operations in the in-seam drivage :- E2 Development. Dated 28/11/94 and 31/10/95.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.