I think if that dynamo works as well as it says it does I'll take two! Front and rear interchangeable wheels. Saw some of those dynamos listed at the auction but didn't realize Simplex used them at them time. Side marker lamps. 18,000 units produced in one year. First time I have seen any numbers like that in print. Looks like a lot of changes came for 1938. The front fender brackets are that of the later models. Dual spring on forks such as the later models too. And I am not sure what that label says on the side cover of the engine. I tried to zoom in but still couldn't read it. How do you think Treen came up with the name Simplex? SIMple....but yet....comPLEX? The world talks about Toyota and their "Lean" manufacturing tecniques but guys like Ford and Treen were naturals at it!!