Thanks to Gerd for a very challenging puzzle and my hat off to Robbie for solving it.
I spent several hours researching this beautiful automobile and I now know a lot more than I ever did about early 1930's Mercedes-Benz automobiles.
I never even thought of Zschau, I don't think I ever heard of them before, so now I am that much "richer" in knowledge.
Thanks, Guys.......
Bill