The application of a tactical sign with a stencil on the Messerschmitt Bf.109F-4 fighter aircraft from the JG51 Luftwaffe squadron during World War II.
Messerschmitt Bf.109 (traditional for the USSR writing – Me-109) is a single-engine piston fighter-low-wing aircraft, which was in service with the Luftwaffe and the Air Force of various countries for almost 30 years.