Working Instructions. Wireless Sets no.18, Mark I, Mark II and Mark III - Engeland Voorschrift Handbook for the ordnance, Q.F., 17-Pr. : Mark I on carriage, 17-Pr. - Mark I. : Land Services - Engeland Voorschrift, 26/Manuals/3186 Supplementary range tables for Q.F. 25-PR. Guns, Marks I and II : smoke shell B.E. (Streamline) - Engeland Voorschrift, 26/Manuals/3280 Gun drill for Q.F. 3.7-inch Mark I Howitzer, on Marks I to IIIr carriages 1941 - Engeland Voorschrift 26/GS Publications/653 WO 7343 Identification list for ordnance, Q.F. 17-pr, Mark I on carriage, 17 pr, Mark IW - Engeland Voorschrift
