I finally, after a dozen years, put an authentic ignition switch--with backing plate--in my '50 3100. What I can't figure out is what goes around the key tumbler that's sticking through the hole in the dash? It looks unfinished, just the tumbler sticking through the hole, but I can't find any part in any of the parts catalogues (American Classic, Jim Carter's, et al) that address this. Any help? Thanks.
