This is an Official American League Baseball that has been hand signed by 26 members of the 1961 New York Yankees Team. The Mickey Mantle signature on this baseball is deemed a clubhouse signature, meaning he did not sign this baseball. The full list of the players that signed this baseball can be found in the Beckett Authentication letter of authenticity. There is toning in the item as shown. This item has been certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof sticker and matching full-page certificate of authenticity.