| Description | Including analysis of the quality of the Lowmoor, Bestwood and Kirkby High Main coal, Oct 1942-Jan 1943, report on quality of coal from Kirkby Hign Main, Dec 1943-Aug 1944, reports, plans and papers on mechanisation project and provision of equipment on rental tems approved by the Ministry of Fuel and Power, Oct 1944-March 1946, and loose plans (3) of Kirkby High Main Seam |