Chuck Knoblauch Autographed Official MLB Baseball New York Yankees "91 AL ROY" Beckett BAS Witness Stock #212255 GuerreroJr-Vladimir This item has been certified

Chuck Knoblauch Autographed Official MLB Baseball New York Yankees "91 AL ROY" Beckett BAS Witness Stock #212255 GuerreroJr Vladimir This item has been certified This item has been certified authentic by Beckett Authentication (BAS) and comes with their tamper proof sticker and matching full page certificate of authenticity that has been hand signed by Shaun Alexander Beckett Authentication has recently changed their physical certificate card policy where they no longer match their serial numbered hologram with a physical certificate A certificate can be printed on Beckett's website for the matching authentication number