Hartmut Baldamus flew with both Jasta 5 and Jasta 9. He had a total of eighteen confirmed victories. He was killed in April 1917. He was very close to having the twenty victories that were required for a PLM at the time. Interestingly, he had received his eighth victory in December 1916, but the number to receive a PLM was increased. Manfred von Richthofen received his PLM at the time of his sixteenth victory in January 1917. This postcard was not mailed.