Tristar certification number is: 6128461.

Ball has some yellowing on it (pictured).

This autographed baseball features the signature of Jim Lonborg, the 1967 AL CY winner. The ball is an official Major League Baseball (OML) and has been authenticated by TRISTAR Productions. It comes with an Ultra Pro UV protective case.

The ball is perfect for any Boston Red Sox fan or collector of baseball memorabilia. It is an original, authentic piece, ideal for display or as a valuable addition to any collection.