Record

NCB - National Coal Board, later British Coal Corporation - 1574-1994
- A - Pre-Vesting Colliery Companies superseded by the National Coal Board - [1672]-1972
  - BUT - Butterley Company Colliery Offices - 1857-1960
    - 10 - Butterley Company Colliery Offices surveying records and plans - 1888-1939
      - 2 - Butterley Company survey reports on coal seams - 1891-1945

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Archive Reference / Library Class No.	NCB/A/BUT/10/2/10
Former Reference	N31/UL
Title	Report on Denby Hall Colliery's Silkstone Seam
Date	May 1942
Description	Report by FF Ridley of Newcastle-upon-Tyne on the quality and distribution of the coal found in the seam. According to an attached letter briefing on the report findings, the coal produced is not of valuable quality as there is no mechanical cleaning process on site. The report also aims to offer advise on how best to treat the coal as well as analyse its characterisitics, with one diagram.
Extent	1 file
Level	Item
Repository	Derbyshire Record Office
Archive Creator	Butterley Company
Archive Creator	National Coal Board

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Name (click for further details)

Denby; Denby Hall Colliery; FL 1876-1967; coal mine

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