Ordnance maintenance : Azimuth instruments M1910 and M1910A1 (degrees) - USA Technical Manual, TM 9-1675 Military works Procurement, contracts, and claims Military personnel Personnel administration Real estate operations Civil works Operations Organization National Military Park; National Park; Battlefield site and National Monument Regulations / war Department-approved and published by authority of the Secretary of War-office of the … War Department Office of the Chief Signal Officer Manual Visual signaling / prepared under direction of the Chief of Infantry - USA Voorschrift, Training Regulations, No. 162-5