Messerschmitt Bf 109 (Me 109) “Black 12″—A Bf 109 G-6 “Kanonenvogel” of JG-2 equipped with the Rüstsatz R6 underwing cannons photographed in in France in 1943. (Bundesarchiv, Bild 101I-487-3066-04 / Boyer / CC-BY-SA)