I may have one in the garage, I’ll have to look. If I don’t check w/ @pardion he has a lot of nice parts and is very nice. If you find one cracked, faded, etc I can repair and refinish the wheel and horn button to where it looks new.
I have been going through my parts and found a few, that seems to be a common problem. I’m going to check w/ a friend and see if he can make a batch of them, that way when I restore the later model wheels I can put new ones in.