I have it as 1935, but that's close enough!
It's one of the Jawa 750s built for the 1000 mil Československých/ 1000 miles of Czechoslovakia race. This car had appeared on Autopuzzles before but listed as a 1939 Rallye Monte Carlo car.... I'm no expert but I believe that my solution is correct.
I'll leave it up to the mods how (or if) they want to merge this puzzle