Four of baseball's best are represented on these single-signed baseballs. They are: Bill Dickey on an official American League (Brown) baseball in blue pen, Yogi Berra on an official Major League ball with Mounted Memories COA and MLB hologram, Bob Gibson on an official Major League ball with "HOF 81" inscription and Mounted Memories COA, and Robin Roberts on an official National League ball with "HOF 76" inscription and Steiner Sports COA.