{"product_id":"ken-griffey-jr-ken-griffey-sr-autographed-black-louisville-slugger-pro-stock-baseball-bat-seattle-mariners-back-to-back-hr-91490-beckett-bas-witness-230131","title":"Ken Griffey Jr. \u0026 Ken Griffey Sr. Autographed Black Louisville Slugger Pro Stock Baseball Bat Seattle Mariners \"Back To Back HR 9\/14\/90\" Beckett BAS Witness","description":"\u003cp\u003eThis is a Black Louisville Slugger Pro Stock Baseball Bat 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.\u003c\/p\u003e","brand":"MIL","offers":[{"title":"Default Title","offer_id":42981048287331,"sku":"MIL-230131","price":549.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0002\/0054\/0188\/files\/DM_5_24_24_1000__37191.jpg?v=1732146453","url":"https:\/\/www.shoprsa.com\/products\/ken-griffey-jr-ken-griffey-sr-autographed-black-louisville-slugger-pro-stock-baseball-bat-seattle-mariners-back-to-back-hr-91490-beckett-bas-witness-230131","provider":"RSA","version":"1.0","type":"link"}