war department technical manual Telescope mounts M 16 : range quadrant M 3 : elbow telescope M 5 : ordnance maintenance war department technical manual Telescope M 6 and telescope mount M 19 : ordnance maintenance / prepared under direction of the chief of ordnance war department technical manual Flank spotting instrument M 1 : flank spotting rule M 1 : ordnance maintenance war department technical manual Azimuth instrument M 1918 : ordnance maintenance United States Army in the world war 1917-1919 / Department of the Army, Historical Division training regulations / war department Chemical warfare service / War Department Engineering manual for War Department construction / War Department , Corps of Engineers Planning / War Department , Corps of Engineers Mechanical design / War Department , Corps of Engineers Sewage and waste disposal / War Department, Corps of Engineers Fuel distribution and storage / War Department, Corps of Engineers Airfield pavement design / War Department, Corps of Engineers