Reference | Title | Date |
RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
RHP146000/684 | Plans of workings at Ordnance Survey National Grid Reference NT 36/0093 Comrie Colliery, Shield Bank, Bankhead, Milton, Langfauld, Devonside, Lethric Mill, South Burnside and Sandydub named on these plans. | 1958-1984 |