20-MM automatic gun M1 and 20-MM aircraft automatic gun AN-M2 : ordnance maintenance - USA Voorschrift, Technical Manual, 9-1227 Storage batteries for signal communication except those pertaining to aircraft - USA Voorschrift, Technical Manual, 11-430 Carriage of engineer equipment by air : Roller, sheepsfoot, allen, single drum with detachable feet in Dakota Aircraft - Engeland Voorschrift, 26/GS Publications/1501 Small arms training : Anti-aircraft / War Office. Army Council. Vol. I - Engeland Voorschrift, 26/GS Publications/1452 anti-aircraft training instruction Z" anti-aircraft - Engeland Voorschrift, 43/AA/... Small arms training : Anti-aircraft / War Office. Army Council. Vol. I - Engeland Voorschrift, 26/GS Publications/607 Artillery training : Tactical employment of anti-aircraft artillery / War Office. Vol I. General Tactical Employment - Engeland Voorschrift, 26/GS Publications/858 Artillery training : Deployment of a heavy anti-aircraft regiment / War Office. Vol II - Engeland Voorschrift, 26/GS Publications/1013 Artillery training : Deployment of a light anti-aircraft regiment / War Office. Vol II - Engeland Voorschrift, 26/GS Publications/971 Supplement no. 4 to Army/Air Operations Pamphlet no. 4. (Chapter 3). Carriage of Army Artillery. Equipment by Air. Section 1. Sheepsfoot Roller-Le Tourneau, Model W … Supplement no.4 to Army/Air Operations Pamphlet no.4. (Chapter 3). Carriage of Engineer. Equipment bij Air. Section 3. Scaper, Self-loading, Airborne, towed type Hydraulic, 1-1/2 Cu-YD. … Supplement no.3 to Army/Air Operations Pamphlet no.4. (Chapter 3). Carriage of Artillery. Equipment bij Air. Section 7, Ordnance of 40-mm A.A. MK 1/2 on mounting …