Seattle Mariners Ken Griffey Jr. Autographed White Authentic Mitchell & Ness 1989 Authentic Cooperstown Collection Jersey Size XL Beckett BAS Witness Stock #212478
Seattle Mariners Ken Griffey Jr. Autographed White Authentic Mitchell & Ness 1989 Authentic Cooperstown Collection Jersey Size XL Beckett BAS Witness Stock #212478 is backordered and will ship as soon as it is back in stock.
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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.
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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Own a piece of baseball history with this White Authentic Mitchell & Ness Seattle Mariners 1989 Cooperstown Collection Jersey, hand-signed by legendary Hall of Famer Ken Griffey Jr. This jersey, in Size XL, is a must-have for serious collectors and Mariners fans alike.
- Hand-signed by Ken Griffey Jr. – One of the greatest outfielders in MLB history and a 13-time All-Star.
- Official Mitchell & Ness Cooperstown Collection Jersey – Faithfully crafted to match the 1989 Seattle Mariners uniform.
- Authenticated by Beckett Authentication Services (BAS) – Includes tamper-proof witness sticker for guaranteed authenticity.
- Size XL – Perfect for framing, display, or wearing to celebrate the legacy of "The Kid."
- Historical Significance – 1989 marks Ken Griffey Jr.'s rookie season, making this piece especially valuable to collectors.
- Easy Certificate Access – Beckett Authentication no longer provides physical certificates, but a matching authentication number allows verification and certificate printing on Beckett's website.
