Wartime signed Willrich postcard of Knight's Cross winner Kapitänleutnant Fritz Frauenheim, commander of the Uboats U-21 and U-101.  

• Frauenheim won the Ritterkreuz with U-101 in August 1940; later on he would also earn the DKiG with the staff of the Kleinkampfverbände. 
• Wartime postcard produced by W. Willrich, sized 15x10 cm, with typed translation by an American collector on the back.   
• Excellent wartime signature "Fritz Frauenheim, Kapitänleutnant" in black pen on the front.