{"product_id":"ken-griffey-jr-autographed-1989-upper-deck-rookie-card-1-seattle-mariners-bgs-8-5-auto-grade-gem-mint-10-beckett-bas-20520251","title":"Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners BGS 8.5 Auto Grade Gem Mint 10 Beckett BAS #20520251","description":"\u003cp\u003e\u003cstrong\u003eAutographed, signed memorabilia — Collector Grade Beckett-authenticated 1989 Upper Deck Ken Griffey Jr. Rookie Card #1 (BGS 8.5, BAS Gem Mint 10 Auto)\u003c\/strong\u003e Widely regarded as the hobby’s most important modern rookie, Griffey Jr. entered the National Baseball Hall of Fame in 2016 with a then-record 99.32% vote. A 13-time All-Star, 10-time Gold Glove winner, and the 1997 AL MVP, “The Kid” launched 630 home runs and defined an era for the Seattle Mariners.\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 Near Mint\/Mint+ 8.5; Beckett BAS Gem Mint 10 autograph; BAS Cert #20520251; encapsulated in Beckett’s tamper-proof holder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuthentication:\u003c\/strong\u003e Beckett Authentication Services (BAS) and Beckett Grading Services (BGS) — verified authentic signature and graded card to support long-term value and easy database verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis verified authentic Griffey rookie combines a strong BGS 8.5 card grade with a BAS Gem Mint 10 autograph, backed by Beckett’s certification and secure encapsulation. A true collector-grade piece that honors Griffey’s legacy and anchors any serious baseball memorabilia collection with confidence.\u003c\/p\u003e","brand":"Mill Creek","offers":[{"title":"Default Title","offer_id":45833496035372,"sku":"267151","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/6196\/2028\/files\/OK_7_20_26_1004__87028.jpg?v=1784676419","url":"https:\/\/www.pristinemarketplace.com\/products\/ken-griffey-jr-autographed-1989-upper-deck-rookie-card-1-seattle-mariners-bgs-8-5-auto-grade-gem-mint-10-beckett-bas-20520251","provider":"Pristine Marketplace","version":"1.0","type":"link"}