Knights Cross postcard U-boat Korvettenkapitän Kretschmar.

Excellent condition III Reich era postcard showing the greatest U-boat ace Korvettenkapitän Otto Kretschmar, holder of the Knights Cross with Oakleaves and Swords. Appears to be wearing an early 3/4 ring RK and Godet Oakleaves. Beautiful detailed photo of the RK and Oaks. Unused