Ken Griffey Jr. & Ken Griffey Sr. Autographed Official MLB Baseball Seattle Mariners "Back To Back HR 9/14/90" Beckett BAS Witness 05-18-MIL It's perfect for fans of

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Ken Griffey Jr. & Ken Griffey Sr. Autographed Official MLB Baseball Seattle Mariners "Back To Back HR 9/14/90" Beckett BAS Witness 05-18-MIL It's perfect for fans ofThis is an Official MLB Baseball that has been hand signed by Ken Griffey Jr. and Ken Griffey Sr. This item was inscribed "Back To Back HR 9 14 90." This item has been witnessed and certified authentic by Beckett Authentication (BAS) and comes with their tamper proof witness sticker.