1977 Seattle Mariner Team Signed Autographed Official AL Baseball With 32 Signatures Beckett BAS #AC56447

This is an Official American League Baseball that has been hand signed by 32 members of the 1977 Seattle Mariner Team. The full list of the players that signed this baseball can be found in the Beckett Authentication letter of authenticity. This item has been certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof sticker and matching full-page certificate of authenticity.