Austrian-born Air Force Cross Squadron Leader (1904–1948), who excelled in sailplane design and was a champion glider during the 1920s and 1930s. His passion would lead to his demise, as he perished during a glider test. Vintage 4 x 6 German postcard photo, featuring a head-and-shoulders photo of the glider in his cap and goggles, beautifully signed in fountain pen. A few trivial spots of soiling, faint pencil notations in another hand on the right border, and show-through and light impressions from the 1933 postage marks on reverse, otherwise fine condition. RRAuction COA.
