Papers relating to the Western shaft at the closed Britain Colliery Letter about preventing possible collapse, 15 May 1973. Letter about the Reclamation Scheme and filling in of Western shaft, 4 May 1973. Letter about the sale of Western shaft etc. to Derbyshire County Council, 14 Mar 1973. National Coal Board surface plan of Western shaft, scale 1:1250, 61 cm x 34 cm, mid 20th cent. National Coal Board map of Western shaft and surrounding land copied from an OS map, Dec 1971, coloured but with no corresponding index schedule, scale 1:2500, 34 cm x 34 cm. Dec 1971-May 1973