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| Archive Reference / Library Class No. | NCB/E/MAR/12/6 |
| Former Reference | D5298/7/4 |
| Title | Markham Colliery No. 1 Blackshale Seam rescue and firefighting plan |
| Date | [c1953] |
| Description | Grided, with inset plan of Pit Bottom and reference key on right hand side. Scale 1:5000 for main plan. Marked up that workings made up Sep 1953 |
| Extent | 1 item |
| Level | Item |
| Repository | Derbyshire Record Office |
| Archive Creator | Markham Colliery |
| National Coal Board |
| Format | Map/Plan |
| Dimensions | 84cm x 110cm |