field survey pamphlet Training of survey personnel / prep. under the dir. of the Chief of the Imperial General Staff ; [issued by the War Office] Handbook for the 303" and 303" converted Maxim machine guns (magazine rifle chamber), mounted on carriages, M.G., infantry; carriages, parapet : tripod and cone mountings … air raid precautions memorandum Rescue parties and clearance of debris / issued by the Home Office (A.R.P. Department) air raid precautions handbook duties of air raid wardens / issued by the Home Office , Air Raid Precautions Department air raid precautions memorandum training and work of First Aid parties / issued by the Home Office (A.R.P. Department) air raid precautions handbook Personal protection against gas / issued by the Home Office, Air raid precautions department field survey pamphlet use of oblique air photographs / prep. under the dir. of the Chief of the Imperial General Staff ; [issued by the War Office] training memorandum Initial training of volunteers / Civil Defence Corps wo Courses of instruction defence specification Defence specification for the use of government departmenets DEF-6 Stop watch, 1/10 second generl service (Pocket Timer) wo User handbook for wireless sender CII / published under the authority of the Signal Officer-in-chief, the War Office, Whitehall S.W.1. defence specification Defence specification DEF-5132 Capacitors, fixed, mica dielectric