Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners BGS 8.5 Auto Grade Gem Mint 10 Beckett BAS #20520245
Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners BGS 8.5 Auto Grade Gem Mint 10 Beckett BAS #20520245 is backordered and will ship as soon as it is back in stock.
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Authenticity Guaranteed
Authenticity Guaranteed
All signatures sold on Pristine Marketplace are 100% guaranteed authentic, offering buyers complete confidence in every purchase.
Each autographed item undergoes rigorous verification through trusted authentication providers—including Beckett Authentication Services (BAS), James Spence Authentication (JSA), Fanatics Authentic, or Pristine Auction’s own in-house standard, Pristine Authentic.
This unwavering commitment to authenticity protects collectors and fans alike, making every signed piece not just a display item, but a trusted investment.
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Description
Description
Collector Grade autographed rookie card—signed by Ken Griffey Jr.—Beckett BAS authenticated memorabilia, BGS 8.5 with Gem Mint 10 auto. Inducted into the Hall of Fame in 2016, “The Kid” crushed 630 home runs and won the 1997 AL MVP. A 13-time All-Star and 10-time Gold Glove center fielder, Griffey defined the 1990s Mariners—and his 1989 Upper Deck #1 rookie is the era’s flagship card.
Collector's Highlights:
- Athlete: Ken Griffey Jr.
- Item: 1989 Upper Deck Rookie Card #1 (Seattle Mariners) — BGS 8.5 card grade, BAS Gem Mint 10 autograph; Beckett encapsulated, serial #20520245
- Authentication: Beckett Authentication Services (BAS) for the signature and Beckett Grading Services (BGS) for the card; sealed in a tamper-proof holder
Authenticated by Beckett, this verified Griffey rookie autograph offers trusted certainty for collectors, with BAS and BGS backing that helps protect long-term value and preserves a key piece of baseball history from one of the game’s greatest sluggers.
