The boldest signature from the tragic HOF hero we've ever seen on a bat. The lumber in question is a Hillerich & Bradsby K55 that was issued to N.L. starting pitcher Jim O'Toole for the 1963 All-Star Game. Clemente's 10/10 autograph is joined by fellow teammates McCovey, Spahn, Santo, Torre and four others. LOA from O'Toole.