Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/711 | Plans of workings at Ordnance Survey National Grid Reference NT 36/1294 Blairadam Colliery, Blairenbathie Mines, Companion Mine, Clentry and Kelty named on these plans. | 1958-1964 |