Nice pair of team-signed baseballs dating from the 1957 season. Both on Official American League (Harridge) baseballs, the pennant-winning New York Yankees and rival Boston Red Sox are the subjects, as follows: Yankees (26 autos): Berra, Howard, Ford, Larsen, Slaughter, Skowron, McDougald, Collins, Coleman, Shantz, Bauer, Carey, Richardson, and more (Mantle is clubhouse); Red Sox (23 autos): Williams, Higgins, Piersall, Jensen, Vernon, Malzone and more. Baseballs are in Excellent to Near Mint condition with signatures averaging 7/10.