Hermann Köhl was a pilot early in the war. He was later transferred to a bomber squadron where he was very successful in his efforts against the French. His award was made in May 1918. Interestingly, he was shot down and interred in a POW camp until 1919. He was involved in aviation in post WW I Germany. He was well-known as he made a East to West crossing of the Atlantic in 1918 (this was more difficult than the Lindbergh flight since when one flies from Europe to the U.S. the flying is slower due to fighting head winds). He died in 1938. The portrait photo shows him in a civilian suit and is clearly signed on the obverse.