just saw this photo for the first time. apparently taken in September 1918. I had not found any reference to 503 being named Theunissen nor for any A7Vs being painted with the commander's name. Does anyone have any more details on this and also on Oblt Heinz Theunissen? I have seen reference to him in the Freikorps and I know he was still around to collect his commemorative tank crew badge in the early 1920s but then i have nothing. I work for Qld Museum and handle all of the enquiries about Mephisto which Theunissen was the last commander. Any other information on the crew members would also be appreciated.