Not sure if this belongs here or not but its certainly English.
If the lower parts of the motor aren't smashed from hitting curbs and running offroad, it may be a cool collectible.
The only one I ran across in all my years was on an early BSA bike and it had been hanging in a barn for 30 years when I found it back in the mid 80's. I though I'd post it here after it popped up in my FB feeds this morning.
http://www.facebook.com/marketplace/...18172350446762
Vincent Firefly on Raleigh Sports
Here's some info elsewhere on the web:
https://classic-motorcycles.com/rest...ncent-firefly/