19th century gold Lowell champions pin presented to Tim Shinnick
 

Not my auction but a friend of mine who had me help him figure this piece out. Appears this was presented to Tim Shinnick when Lowell won the championship. Shinnick did play in the majors for the 1890-91 Louisville Colonels of the American Association. The 1890 Colonels won the league and tied the World Series with the Brooklyn Bridegrooms.

https://www.ebay.com/itm/114847665176