Official National League (Feeney) Baseball signed by 13 members of the 500 Homerun Club including Barry Bonds, Hank Aaron, Willie McCovey, Eddie Mathews, Willie Mays, Ernie Banks, Frank Robinson, Mickey Mantle, Harmon Killebrew, Ted Williams, Reggie Jackson, Mike Schmidt, and Eddie Murray. Lightly toned ball with all signatures in ballpoint. Signatures are "9-10" on scale of "1-10." LOA.