My '56 came to me with the button on the right of the original post. One year in Kansas City I noticed Arch's '56 with one like the one on the left. I then checked vendor catalogs and they listed a repo of the one on the left for '56.
I bought one of the pieces of junk. When I needed the horn it wouldn't honk. A block later while I'm trying to make it work, it sticks on. I decided to pull it off to see why and it came apart. I put the old one back on. I don't care if it's right or wrong, it works.
