Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/198 | Plans of workings at Ordnance Survey National Grid Reference NS 26/5812 Rigfoot No.1 Shaft, Lanemark No.1 Shaft, Bank No.3 Shaft and Afton No.3 Mine noted on these plans. | 1957-1966 |