Operating intructions standard signal generator type TF144.G. / Marconi Instruments Instruction on the Lewis automatic machine gun / Simplex Machine gun manual : a complete manual to machine gunnery containing details of Maxim Vickers Lewis Colt Hotchkiss together with Drill (elementary and advanced) : … C.B. 1970 (39) Handbook for Asdic Sets, Type 128, 128S, & 128L. (1939)
