{"product_id":"ken-griffey-jr-autographed-1989-upper-deck-rookie-card-1-seattle-mariners-bgs-7-auto-grade-gem-mint-10-beckett-bas-20520250","title":"Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners BGS 7 Auto Grade Gem Mint 10 Beckett BAS #20520250","description":"\u003cp\u003e\u003cstrong\u003eCollector Grade autographed rookie card memorabilia, signed by Ken Griffey Jr., authenticated by Beckett—1989 Upper Deck #1 with BGS 7 card grade and BAS Gem Mint 10 autograph (Beckett #20520250).\u003c\/strong\u003e A 2016 first-ballot Hall of Famer, Griffey launched 630 home runs, won the 1997 AL MVP, and made 13 All-Star teams. His smooth lefty swing and 10 Gold Gloves made him the face of 1990s baseball and a Seattle Mariners icon.\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\u003eAthlete:\u003c\/strong\u003e Ken Griffey Jr.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem:\u003c\/strong\u003e 1989 Upper Deck Rookie Card #1 – Seattle Mariners – BGS 7; BAS Autograph Grade Gem Mint 10; Beckett serial #20520250\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) and Beckett Grading Services (BGS); encapsulated in Beckett’s tamper-proof holder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBacked by Beckett BAS and secured in a BGS slab, this verified authentic Griffey rookie autograph offers trusted long-term collectability. It’s the hobby’s most recognizable rookie paired with a Gem Mint 10 signature—exactly what serious baseball memorabilia buyers look for.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45833495969836,"sku":"267153","price":839.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_7_20_26_1008__11004.jpg?v=1784676419","url":"https:\/\/www.pristinemarketplace.com\/products\/ken-griffey-jr-autographed-1989-upper-deck-rookie-card-1-seattle-mariners-bgs-7-auto-grade-gem-mint-10-beckett-bas-20520250","provider":"Pristine Marketplace","version":"1.0","type":"link"}