Instruments : Fire-control instruments - mobile artillery - USA Voorschrift, Training Regulations, No. 310 Coast artillery corps : Coast artillery target practice - USA Voorschrift, Training Manual, No. 2160-35 Symbols for seacoast defense fire-control maps, diagrams, and structures - USA Voorschrift, Technical Regulations, No. Corps of engineers / War Department : Combat regiment - The platoon and the company - USA Voorschrift, Training Regulations, No. 445-18 Corps of engineers / War Department : The railway battalion - USA Voorschrift, Training Regulations, No. 445-25 Signal : Commercial telephone, telegraph and electric time service, general - USA Voorschrift, Army Regulations, No. 105-30 Agent finance officers - USA Voorschrift, Technical Manual 14-505 37-MM AA gun matériel - USA Voorschrift, Technical Manual, 9-235 Gunnery for seacoast artillery - USA Voorschrift, Training Manual, 2160-30 Milling machines, shapers, and planers - USA Voorschrift, Technical Manual, 1-421 Aircraft engine operation and test - USA Voorschrift, Technical Manual, 1-408 Calibration Procedure for Lance Forward Mirror Bracket Assembly 10246197 - USA Voorschrift Technical Bulletin 9-1425-485-50-1