This is an Official American League (Harridge) baseball signed by members of the 1957 New York Yankees. There are 25 signatures in all; Yogi Berra signed on the sweet spot; a Mickey Mantle clubhouse signature also appears there. Other names include Enos Slaughter, Darrell Johnson, Ralph Terry (clubhouse), Elston Howard, Bill Skowron, Don Larsen, Tony Kubek, Gil McDougald, Ed "Whitey" Ford, Jerry Coleman, Bob Turley and Hank Bauer, among others. The ball is in excellent condition; overall the signatures grade 6/7 out of 10.