Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/572 | Plans of workings at Ordnance Survey National Grid Reference NS 26/9261 Fauldhouse Colliery, Crofthead Colliery, Stonehead Colliery, Benthead Colliery, Royal George Pit, Eastfield Pits and Polkemment Colliery noted on these plans. | 1958-1961 |