Ken Griffey Jr. Autographed 1988 Cal Leagues Rookie Card #34 Seattle Mariners Auto Grade Gem Mint 10 San Bernardino Spirit Beckett BAS Stock #220292
Ken Griffey Jr. Autographed 1988 Cal Leagues Rookie Card #34 Seattle Mariners Auto Grade Gem Mint 10 San Bernardino Spirit Beckett BAS Stock #220292 is backordered and will ship as soon as it is back in stock.
⭑⭑⭑⭑⭑ 4.8/5 Stars from Real Collectors
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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 1988 Cal League Rookie Card #34, hand-signed by Ken Griffey Jr. —one of the most iconic players in MLB history. This rare collectible has been authenticated and encapsulated by Beckett Authentication Services (BAS), ensuring its legitimacy and long-term preservation. The bold signature has received an impeccable Gem Mint 10 grade from Beckett BAS, making it a must-have for serious collectors and Griffey Jr. fans alike.
- Official 1988 Cal League Rookie Card #34 – a key piece of Ken Griffey Jr.'s early career.
- Hand-signed by Ken Griffey Jr. – a true collector's gem.
- Gem Mint 10 Signature Grade – Beckett BAS has graded the autograph at the highest level.
- Certified Authentic by Beckett Authentication Services (BAS) – encapsulated in a tamper-proof holder for security.
As one of the most celebrated players in baseball history, Ken Griffey Jr. left an indelible mark on the sport with his athleticism and charisma. His rookie-era memorabilia continues to appreciate in value, and this graded, authenticated, and protected card is an excellent investment for any baseball fan or memorabilia enthusiast. Don't miss your chance to own this piece of sports history—order today!
