Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/305 | Plans of workings at Ordnance Survey National Grid Reference NS 26/7076 Twechar Colliery, Dumbreck Colliery, Auchinvale, Auchinstarry and Langside Ruins noted on these plans. | 1959-1960 |