| Reference | Title | Date |
| RHP146000 | National Coal Board Inspectorate plans of workings | 1957- |
| RHP146000/911 | Plans of workings at Ordnance Survey National Grid Reference NT 36/4067 Limeylands Colliery, Bellyford Mine, Tynemount Colliery, Oxenfoord No.3 Mine, Belsis, Ormiston Hall, West Byres, Tyneside Villa, Ormiston Church and Ormiston Colliery named on these plans | [20th Century] |