Major items of equipment subject to war office control Drainage and erosion control : Surface drainage facilities for airfields / War Department. Office of the Chief of Engineers Drainage and erosion control : Subsurface drainage facilities for airfields / War Department. Office of the Chief of Engineers Drainage and erosion control : Drainage and erosion control structures for airfields / War Department. Office of the Chief of Engineers Planting : Dust control / War Department. Office of the Chief of Engineers air raid precautions memorandum Local communications and reporting of air raid damage (including local control) / issued by the Home Office (A.R.P. Department) Modellen behoorende bij de instructie voor het voeren der administratie bij compagniën en detachementen Training receiver for Vickers anti-aircraft fire control gear Elevation receiver for Vickers anti-aircraft fire control gear Vickers anti-aircraft fire control gear : general considerations Vickers anti-aircraft fire control gear : general description, [according to] drawing no. 14036D Instruments for testing optical and fire control instruments