Supplement no.3 to Army/Air Operations, Pamphlet no.4. (Chapter 3). Carriage of Artillery Equipment by air. Section 8. Gun, Machine, Polsten 20 mm. Mark I on … Supplement no.3. to Army/Air Operations Pamphlet no.4 (chapter 3). Army/Air Operations Pamphlet. Carriage of Vehicles bij Air. Section 4, Q.F. 25 Ponder. Mark 2, Gun … Inter-service. Ammunition & Ammunition Package. Markings. W.O. Code No. 1803 - Engeland Voorschrift Instruction for Armourers 1931. Supplement no.2. Guns, Machine, Bren.303-inch. Mark I. Mountings, Tripod, Bren .303-inch. M.G, Mark I and accesories. WO 680 - Engeland Voorschrift … Military Engineering. Volume III. Part II. Pamphlet no. 5 a. Small Box Girder Bridge, Mark III, 1939 - Engeland Voorschrift Working Instructions. Wireless Sets no.18, Mark I, Mark II and Mark III - Engeland Voorschrift Handbook of the B.L., 6 inch 26 CWT, Mark I, Howitzer on Mark I. Travelling Carriage. (Land Service). 1917 WO 3496 - Engeland Voorschrift 40/W.O./3496 Working Instructions. Wireless Set no.38. Mark II and II*. WO 1071 - Engeland Voorschrift Working Instructions. Part I. Wireless Sets no.19. mark I, Mark II, and Mark III. WO 1055 - Engeland Voorschrift Supplement no.3 to Army/Air Operations Pamphlet no.4. (Chapter 3). Carriage of Artillery. Equipment bij Air. Section 6, Q.F. 17 Ponder, Mark 1 Gun on Carriage … Supplement no.3 to Army/Air Operations Pamphlet no.4. (chapter 3). Carriage of Artillery. Equipment by air. Section 3, Q.F. 3.7 Howitzer, Mark 1 on carriages 3-7 … Working Instructions. Part I. Mark I, Mark II, and Mark III. WO 1055, Z.A. 21575 - Engeland Voorschrift