Working Instructions. Apparatus, Loudspeaking, no. 10. Complete Station no. 1. WO 1571 - Engeland Voorschrift Working Instructions. Training Set W.T. Mks. 2, 2* and 3. WO 1526 - Engeland Voorschrift Working Instructions. Wireless Sets. no.38. MK. II or MK. II* in Churchill I, II, III and IV Tanks. WO 1072 - Engeland Voorschrift wo User handbook for wireless sender CII / published under the authority of the Signal Officer-in-chief, the War Office, Whitehall S.W.1. limited edition military series Rules and regulations for the sword exercise of the cavalry / London, Printed for the War Office and sold by T. Egerton, Military Library, Whitehall, …