Ken Griffey Jr. & Sr. Autographed Louisville Slugger Bat Seattle Mariners "Back To Back HR 9/14/90" Beckett BAS Witness #2W690574

This is a Louisville Slugger Bat that has been hand signed by Ken Griffey Jr. & Sr. This item was inscribed "Back To Back HR 9/14/90." NOTE: There is a dent in the bat, near the autographs, as shown in the pictures. This item has been witnessed and certified authentic by Beckett Authentication (BAS) and comes with their tamper-proof witness sticker. Beckett Authentication has recently changed their physical certificate card policy where they no longer match their tamper-proof sticker with a physical certificate. A certificate can be printed on Beckett's website for the matching authentication number.