Ordnance maintenance : Azimuth instruments M1910 and M1910A1 (degrees) - USA Technical Manual, TM 9-1675 Instruments : Sights, quadrants, and fuze setters, antiaircraft artillery - USA Voorschrift, Technical Regulations, No. 1310-50 Operator's Manual, Tester, Igniter Circuit (Allegany Instrument Company Model 101-5BF) (4925-712-0205 - USA Voorschrift Technical Manual 9-4925-226-10 Air navigation attack computer : part no. FAA-160B ; FSN 6605-435-1481 (Felsenthal Instruments) 22040
