eBay item 1575104130 (Ends Nov-03-02 12:18:27 PST )
Gentleman Jim Corbett Pinback Button *RARE*.
http://www.boxingcollectors.com/ says:
...the most prized buttons are pre-1900 buttons of Sullivan, Corbett, and Fitzsimmons. These are smaller buttons with the advertising company printed inside.Buttons like this can sell for $100.
Maybe this is the long lost Gentleman Jim Corbett button that collectors have been searching for!
I hope so.