Butterley Company correspondence file on rehabilitation centres for miners, including the proposed centre at Berry Hill, Mansfield, which opened in April 1940 Including correspondence with the Midland Colliery Owner's Mutual Indemnity Company and other colliery companies on the re-conditioning of partially incapacitated men and the proposal of a rehabilitation centre at Berry Hill and report on the reorganisation and progress of the Fracture Clinic at Mansfield and District General Hospital, Nov 1938. Also including correspondence on individual cases after the opening of the Berry Hill Centre from April 1940. Oct 1937-Jul 1940