Oxford history of England / ed. by George Clark U.S.Army foto van generaal Mark W. Clark Selecting aircraft timber British Aircraft Armament : volume 1 : RAF gun turrets from 1914 to the present day British Aircraft Armament : volume 2 : RAF guns and gunsights from 1914 to the present day Aces High : The War in the Air over the Western Front 1914-18 Avro Lancaster Portfolio carrier war On the ice Vliegerhelm type HGU-47/P(V4) Marine luchtvaartdienst AN6538-1 Dolk, zogenaamde loopgraafdolk Amerikaans model 1917 met driehoekige kling met boksbeugel en schede
