| Description | Including notes on meeting at Derby Chamber of Commerce on protection against air raids, Jan 1937, proposed post at Ripley, Jan-Sep 1938, black-out exercises, Aug 1938-Aug 1939, training, Dec 1938, employees' protection, Apr 1939, filling material for sand bags, Apr-May 1939, camouflage, May 1939 equipment, May-Aug 1939, organisation at collieries, Jun-Jul 1939, emergency instructions, Sep 1939, overtime, Sep 1939, gas masks, Sep-Oct 1939, air raid shelters, Sep 1939-Mar 1940, emergency winder gear, Nov-Dec 1939, trailer pump at Ollerton Village, Mar-Apr 1940: with one letter and list about equipment at Monument Hall, Sep 1946, and loose copies of HMSO publications on Air Precautions for Collieries, 1938, and War Time Lighting Restrictions for Industrial and Commercial Premises, 1939 |