Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Thad Bosley Back Beckett BAS #10379642
Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Thad Bosley Back Beckett BAS #10379642 is backordered and will ship as soon as it is back in stock.
⭑⭑⭑⭑⭑ 4.8/5 Stars from Real Collectors
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100% 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.
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Own a piece of baseball history with this 1989 Upper Deck Ken Griffey Jr. Rookie Card #1, hand-signed by the legendary Hall of Famer himself. This iconic rookie card is a must-have for serious collectors and fans of one of baseball’s greatest players.
- Authentic Autograph – Hand-signed by Ken Griffey Jr., one of the most celebrated players in MLB history.
- Certified by Beckett Authentication (BAS) – Comes encapsulated in a tamper-proof holder to guarantee authenticity.
- Unique Two-Player Feature – Features Thad Bosley on the back, as shown in the images.
- Condition Note – This card is damaged, making it a more affordable option for collectors who value authenticity over pristine condition.
As the face of a generation and a 13-time All-Star, Ken Griffey Jr. left an unforgettable mark on the game. His 1989 Upper Deck Rookie Card #1 remains one of the most sought-after collectibles, representing the beginning of an illustrious career. Despite the card’s condition, its historical value and certified signature make it an incredible addition to any memorabilia collection. Don’t miss your chance to own this signed piece of baseball history!
