Principles and Practice of Good Instruction for Officers and NCO Instructors. Part 1. WO 8162 - Engeland Voorschrift 26/GS Trg Publications/1637 War Office Film Catalogue, 1944, Part III. Film Strips. WO 1583 Working Instructions. Cable Layer Mechanical no. 1, MK I, MK I* en MK I**. Part I. Cable Layer Mechanical no. 1, MK I and MK …