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| Archive Reference / Library Class No. | NCB/E/GRS/3 |
| Former Reference | N42/1/20/7 |
| Title | Plans for future changes at Grassmoor Colliery, Plans 1-4 and 6. |
| Date | 1947-1948 |
| Description | Plan 1 comparing existing and proposed future layout of No 1 bank staff double shift winding, including numbered index schedule. Plan 2 comparing existing and proposed future layout of No 4 Pit bank staff double shift winding, including numbered index schedule. Plan 3 comparing existing layout of No 1 Pit Bottom manpower and top deck with future layout, including annotated notes and numbered index schedule. Plan 4 comparing existing and future layout of No 4 Pit Bottom manpower, including numbered index schedule. Plan 6 for First Piper seam, including annotated dates parts of seam were worked, scale 1:5000. |
| Extent | 1 bundle |
| Level | Item |
| Repository | Derbyshire Record Office |
| Archive Creator | Grassmoor Colliery |
| National Coal Board |
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