Germany, Imperial. A Signed Postcard Of Fighter Ace Leutnant Max Immelmann GTRexclude marked "900" (silver) and hallmarked

marked "900" (silver) and hallmarked on the reverse

It is size stamped in black ink "66" on one of the rear panels

The organization worked with the American and Canadian Red Cross to provide this relief

which was followed by his return to the United States

Germany, Imperial. A Signed Postcard Of Fighter Ace Leutnant Max Immelmann GTRexclude marked "900" (silver) and hallmarked(Luftstreitkrfte Fliegerass Postkarte mit Unterschrift). A rare signed postcard depicting First World War fighter ace Leutnant (later Oberleutnant) Max Immelmann, in uniform and with an array of decorations including the Pour le Mrite clearly visible, the lower half of the image overlaid by Immelmanns clear handwritten signature in black ink, the lower right corner bearing a mark indicating the the postcard was issued as part of a series of wartime