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Ken Griffey Jr. Autographed Official MLB Baseball Seattle Mariners "630 HRs" Beckett BAS Witness Stock #212461 PhotoShop This is a First DayThis is an Official MLB Baseball that has been hand signed by Ken Griffey Jr. This item was inscribed "630 HRs." 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