Few pitchers in baseball history can match the resume of first-ballot Hall of Famer Bob Gibson. And "Gibby" was hardly shy about his accomplishments, as evidenced by these four signed baseballs that also features multiple hand-written statistics from the multiple Cy Young Award winner. Gibson signed each on the sweet spots and added 16 stats on three of the baseballs, while the other bears five. Each comes with a JSA COA.