Nearly half of the 28 members of Major League Baseball's exclusive 500 Home Run club have signed this Official American League (Brown) ball. Included are: Mantle (ss), Williams (ss), McCovey, Murray, Mathews, Mays, Killebrew, Reggie Jackson, Barry Bonds, Aaron, Schmidt, Frank Robinson, Banks. Ball has one blemish near the Bonds signature, otherwise EX-NM. Plenty of room exists to add more of the 12 living members (at this writing) who have not yet signed. Comes with PSA LOA.