From left to right: Polish flying ace and Squadron Leader Jan Zumbach (13 kills), Wing Commander Stefan Witorzeńć (5 kills) and Flight Lieutenant Zygmunt Bieńkowski (1 kill). They're from 303rd Polish Fighter Squadron of Royal Air Force (Polish Fighter Squadron badge on the left, white circle with red stripes). During the Battle of Britain, September to October 1940, this squadron is famous for claiming the highest number of enemy (German Luftwaffe) kills of all fighter squadrons then in operation! The squadron was disbanded in December 1946. While servicing in the 303rd, Zumbach used three Supermarine Spitfires Mk.Vb with the Donald Duck art, and all of them were coded with RF-D but had different serials: The Spitfire Mk.Vb EN951, BM144 and EP594. The picture itself was taken in Northolt Airfield, September 1942, and showing a Spitfire Mk.Vb BM144 RF D of S/Ldr Jan Zumbach
Source:
http://www.gettyimages.com/detail/news-photo/polish-flying-ace-jan-zumbach-of-the-303-kosciuszko-polish-news-photo/79155636