Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/545 | Plans of workings at Ordnance Survey National Grid Reference NS 26/9066 Westrigg Colliery, Southrigg Colliery and Polkemmet Colliery noted on these plans. | 1960-1965 |