Artillery Training, Volume III, Field Gunnery, Pamphlet No. 7, Calibration, 1943 - Engeland Voorschrift 26/GS Publications/1454 Artillery Training Volume III, Field Gunnery, Pamphlet No. 7, Calibration, 1943 - Engeland Voorschrift 26/GS Publications/896 Training Memorandum No. 17, Royal Engineers, Far Eastern Warfare Code No. 7012 - Engeland Voorschrift 26/GS Publications/148b Handbook of the Range=Finder Infantery No. 2 (Bar & Stroud.) 31.5 inches base. 1913 - Engeland Voorschrift 40/W.O./1855 Small Arms Training. Volume I, Pamphlet N°. 10, Range-Finder No. 12, 1942 - Engeland Voorschrift