anti-aircraft artillery, which damaged one Do 17 which then collided with the other. The Polish Aviation Museum in Kraków has the only surviving PZL P.11c fighter from the September campaign. Among other armaments, it has four 7.92 mm machine guns. An examination of a fragment from one of the downed Dorniers revealed at least four clearly defined bullet holes having the same diameter to the ammunition on board Gnyś's PZL P.11c fighter. Taking into account the bullets' angle of entry and the resulting damage, their diameters match up within one mm of the 7.92. This would conclude that the two Do 17s were not brought down by anti-aircraft fire because shrapnel from an exploding shell does not leave neat holes, but rather jagged and irregular size punctures. The combat in which Medwecki was shot down took place in 5:30-6:00 am and, according to Emmerling, Gnyś only fired at the Ju 87, but did not hit it, nor did he meet Do 17s. Other authors however, claim that damage to one of the Do 17s which resulted in a collision with the other, might have been caused by Gnyś. One such author, Polish aviation historian Jerzy B. Cynk, concluded that W. Gnyś was responsible for the first Allied aerial victories of the war. [see 'The Polish Air Force at War - The Official History 1939-1943' pp. 73, 75] Gnyś scored another victory in September 1939, claiming a He 111. France 1940 After the fall of Poland, Gnyś fled to France and served as a pilot with the French Air Force. Flying the Morane MS 406-C with GC III./1 and stationed at Toul Croix, Gnyś scored three shared victories; a He 111 on 12 May and two Do 17s on 16 May. After the French surrender, Gnyś escaped via Oran and Casablanca and arrived in Liverpool on 14 July 1940. With the RAF 1940-44 Gnyś later fought with the Royal Air Force, joining No. 302 Squadron as a Pilot Officer on 17 August 1940 and seeing combat in the Battle of Britain and into 1941. On 21 May 1941 Gnyś' Hawker Hurricane was badly damaged by fighters although he managed to return to base. Later he served with the No. 316 Polish Fighter Squadron flying Spitfires and No. 309 Polish Fighter-Reconnaissance Squadron, flying tactical reconnaissance Mustangs. On 22 August 1944, he was appointed to the command of No. 317 Polish Fighter Squadron.