Original Wartime Signature on a Postcard of Johannes Schalk. Oberst Johannes Schalk (19.09.1903 † 09.11.1987) earned the Ritterkreuz on September 5, 1940 as Oberstleutnant und Kommodore of the III. Gruppe/ Zerstörergeschwader 26 “Horst Wessel”. Good condition. Measuring: Postcardsize.