Butterley Company correspondence file on its lease of Mr Weston Plumptre's minerals at the Plumptre Colliery Relating to the lease of the Deep Hard and Deep Soft coal seams, including the terms of the lease. Leases from Mr Thompson in the Codnor area and the Milnhay area of Langley Mill are also mentioned. Coal in the possession of the Butterley Company was trespassed on by the Digby Colliery Company. Jan 1908-Jan 1918