Gun Drill for 40-mm. A.A. Gun and Predictor, A.A. no. 3. (Britsh Equipments) and 40-mm. A.A. Gun and Directors M.5 and M.6 (U.S.A. Equipments) : … Gun Drill for 40-mm. A.A. Gun on S.P. Mounting - Engeland Voorschrift 26/GS Publications/1323 WO 7402 Gun Drill for Q.F. 3.7 inch, Mark II or III Gun, on Mounting Q.F. 3.7 inch. A.A. Mark II. Land Service. - Engeland Voorschrift 26/GS …