Hi, I am wondering if anyone can help. I have been given an old ('53) Raleigh Superbe (not in superb condition) and this was an additional part that came with it. It looks like it mounts on the headset. Is it what I think it is? Does it have any value? http://i300.photobucket.com/albums/nn21/peter_merchant1/IMG_20180612_121935_zpsfzg1kzt2.jpg?t=1528878033Thanks for your interest.PM