manual Electrical instruments and telephones of the U.S. signal corps : revised 1910 air publication General instrument equipment for aircraft, vol. 1 / Air Ministry Instrument drill for predictors, Antiaircraft Artillery, Nos.2 and 5 war department technical manual Field artillery Fire-control instruments / prepared under direction of the chief of field artillery Coast artillery drills. Vol. I : Instruments in the battery obervation post-general Handbook of artillery instruments and range-finders : / The War Office. Part 1 / The @War Office pamphlet Directions for the use of artillery instruments : The radio link S.R. Mark I voorschrift Voorschrift, betreffende de inrichting en het gebruik van de instrumenten bij de infanterie (V.I.I.) Handbook of artillery instruments and range-finders Handbook of artillery instruments and range-finders / The War Office : Part 1 pamphlet Directions for the use of artillery instruments : Sound ranging equipment, miscellaneous Handbook of artillery instruments and range-finders : Range-finders nos., 2, 11, 11a, 13 & 13a / The War Office. Part 1 / The @War Office
