Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Rules for Deputies and Shotfirers (booklet)
Full title - National Coal Board Northern Division No.9 Area Rules for Deputies and Shotfirers. Particularly refers to Lynemouth Colliery, Northumberland. 56 pages, undated.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.