Directions for the use of artillery instrument. Pamphlet no.7.Theodolites, Optical Scale, 3 1/2 inch, Nos. 1 and 2. WO 7335 Index to anti-aircraft publications and films. 1944. WO 7390 Principles and Practice of Good Instruction for Officers and NCO Instructors. Part 1. WO 8162 - Engeland Voorschrift 26/GS Trg Publications/1637
