This autographed American Association baseball has been personally hand-signed by Jim Bunning, Harmon Killebrew, Dick Williams, Jim Lemon, Ken Aspromonte, Bud Daley, Paul Foytack, Bob Morgan, Bobby Bragan, Cal McLish, Hal Smith, Frank Bolling, and Russ Nixon. This autograph is certified by Stacks of Plaques (SOP). It comes with the Stacks of Plaques authentication hologram and Letter of Authenticity.