Rawlings Official American League Baseball. Hand-signed in black ink pen by Bert Blyleven (Minnesota Twins, Texas Rangers, Cleveland Indians, Pittsburgh Pirates, Claifornia Angels, HOF). Please note, ball shows signs of toning, see photos for details. The autograph includes an official James Spence Authentication (JSA) hologram and matching COA for authenticity purposes.Authentication: JSA COACheck out all the items in our Friendly Confines Collectibles store, Thanks for looking.