Two German airmen checking the landing gear of a JG27’s Messerschmitt Bf 109E-7 Tropicalized, Libya 1941. The photo highlight the shape of Bf 109’s retractable landing gear and the large anti-sand filter on the cowling’s left side. Victor Sierra

Checking the landing gear

“Yellow 4”: Messerschmitt Bf 109E-7 Tropicalized of 3./JG27 on a Luftwaffe’s Libyan base, 1941, in front to Deutsche Afrika Korp’s flag. In background an high wing Italian plane, perhaps a Caproni 133. Victor Sierra