I believe the body tub style changed in 24, so anything before that should fit. Look up a couple of pics on google images. Look at the lower cowl sides right near the side apron. The early cars were rolled under, compound curved. I believe in 24 is when it got a flatter cowl side bottom, and the doors changed, too.
F&J is probably right, I was thinkin' at least until '20. The early doors have big radiuses at the bottom too.