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 Description of the model of the siege of Sebastopol and deposited in the Museum of the Service Institution Whitehall Yard : to which is added … 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, … wo User handbook for wireless sender CII / published under the authority of the Signal Officer-in-chief, the War Office, Whitehall S.W.1.