I bought some bulk jewelry, and this was in it. Not anything I'd ever wear. I think someone does want it, possibly a permie, and possibly in time for Christmas!
The pin is on the upright down from the handlebars, works well. The front wheel is loose, held in place by threading it on the pin. A couple of the pictures are showing the wheel moved around.
It's 2.75 inches from the upright to the back of the back wheel. The big wheel that moves around is 1.5 inches. At that size, it's possibly meant to be a scarf pin.
I want it to go to a good home, where it will be wanted and loved. I don't know yet how cheaply I can ship it, but it can't cost too much. I'm also open to trading for a piece of jewelry that I WOULD wear. Reply here, or in PM :D