Screens PH-555/GF and PH-556/GF - USA Voorschrift, Technical Manual, 11-2336 pamphlet Instructions for the examination, repair and sentencing of anti-gas clothing / War Office - Engeland Voorschrift, 26/Publications/5349 Soviet army Chemical warfare & flame equipment / War Office . MI 10 - Engeland Voorschrift, WO Code No.11679