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| Archive Reference / Library Class No. | NCB/A/CLX/4/6/1 |
| Former Reference | N35/2/7 |
| Title | Surveyor's section of mineral strata record book for several collieries, mostly relating to the Clay Cross Company |
| Date | [1860s-1870s] |
| Description | Index page at front., signed by William Howe. Columns for mineral names of strata, number of strata, scale of yards, scale of feet, colours of strata, thickness of strata (in feet and inches), depth from surface (in yards, feet and inches) and local names of strata and remarks.
Pages 1-9, Clay Cross Colliery, No. 4 Main Pit, strata to Blackshale Coal.
Pages 10-15, Clay Cross Colliery, No. 2 Pit, strata to Blackshale Coal.
Pages 16-25: Tupton Colliery.
Pages 26-44: Portland Colliery (No. 1) and Butterley Park Collieries.
Pages 45-53: Morton Colliery (No. 5 Main), sinking started 18 Jun 1863, Blackshale Coal reached 16 Aug 1865.
Pages 54-62: Abergarn Collieries, Wales.
Pages 63-68: Clay Cross No. 7 Pit, downcast shaft started 18 June 1866, upcast shaft started 4 July 1866.
Pages 69-73: Tapton Collieries,
Pages 74-85: Hardwick Colliery, Holmewood.
Much later sticker on front identifies it as (Clay Cross Coll.) Butterley Co. Ltd. |
| Extent | 1 volume |
| Level | Item |
| Repository | Derbyshire Record Office |
| Archive Creator | Clay Cross Company Limited |
| National Coal Board |
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