German airman. He laid the foundation of German fighter tactics in World War I, and originated the Immelmann turn - a half-loop followed by a half-roll. He was killed in action. Vintage 3.5 x 5.5 postcard photo, signed in fountain pen, “Max Immelmann, Leutnant.” In very good condition, with mounting remnants to reverse, some light contrast to portion of signature and some scattered light silvering. R&R COA.