Directions for the use of artillery instrument. Pamphlet no.7.Theodolites, Optical Scale, 3 1/2 inch, Nos. 1 and 2. WO 7335 Signal Training. (All Arms). Pamphlet no.5. Signal Procedure. Part II. Procedure for Morse Telegraphy, Line Telephony and Visual Signalering, WO 7040 Signal Training. (All Arms). Pamphlet no.2. Visual Signalling, 1942. WO 7211
