Description | Following items selected for retention: - Air Raid Precautions Department circular on cooperation with churches during raids, 1939 - Ministry of Home Security, Wartime Lighting Restrictions, 1939 - Auxiliary Fire Service Uniforms and Equipment, 1939 - Air Raid Precautions Department booklet on Detection and Identification of War Gases, 1939 - ARP Memorandum 11 (1st edition): Gas Detection and Identification Service, 1939 - Air Raid Precautions Department Guide to Combined Exercises - ARP Memorandum 12 (1st edition): Protection of windows in Commercial and Industrial buildings, 1940 - Air Raid Precautions Department Notes on Construction, Maintenance and Replacement of Sandbag revetments, 1940 |