{"product_id":"ken-griffey-jr-autographed-1989-upper-deck-rookie-card-1-seattle-mariners-beckett-bas-19211271","title":"Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Beckett BAS #19211271","description":"\u003cp\u003e\u003cstrong\u003eCollector-Grade autographed and signed memorabilia: Ken Griffey Jr. 1989 Upper Deck Rookie Card #1.\u003c\/strong\u003e A 2016 Baseball Hall of Fame inductee, Griffey won the 1997 AL MVP, made 13 All-Star teams, and earned 10 Gold Gloves with the Seattle Mariners. His 630 career home runs and era-defining swing cement him as one of MLB’s most beloved sluggers.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCollector's Highlights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfession - Athlete:\u003c\/strong\u003e Ken Griffey Jr.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e Autographed 1989 Upper Deck Rookie Card #1 (Seattle Mariners) — BAS encapsulated, Cert #19211271\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) — verified authentic in a tamper-proof holder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis verified authentic, collector-grade rookie pairs the hobby’s most iconic modern baseball card with Griffey’s signature—true centerpiece material for Mariners fans and serious card collectors. Beckett’s COA and tamper-proof slab document the autograph and protect the card, helping preserve long-term value and buyer confidence for years to come.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45597575905324,"sku":"257738","price":839.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_1_15_26_1376__48499.jpg?v=1780527177","url":"https:\/\/www.pristinemarketplace.com\/products\/ken-griffey-jr-autographed-1989-upper-deck-rookie-card-1-seattle-mariners-beckett-bas-19211271","provider":"Pristine Marketplace","version":"1.0","type":"link"}