1989 Seattle Mariners Team Signed Autographed Official AL Baseball With 29 Signatures Including Ken Griffey Jr. Rookie Beckett BAS #AC56450
1989 Seattle Mariners Team Signed Autographed Official AL Baseball With 29 Signatures Including Ken Griffey Jr. Rookie Beckett BAS #AC56450 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.
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 Official American League Baseball signed by 29 members of the 1989 Seattle Mariners. This rare collectible features the autographs of legendary players, including Ken Griffey Jr. and Edgar Martinez, making it a must-have for Mariners fans and memorabilia collectors.
- Authentic Team-Signed Baseball – Hand-signed by 29 members of the 1989 Seattle Mariners roster.
- Includes Ken Griffey Jr. & Edgar Martinez – Two of the most iconic names in Mariners history.
- Certified by Beckett Authentication (BAS) – Comes with a tamper-proof sticker and a matching full-page certificate of authenticity.
- Historic Mariners Collectible – A unique tribute to the 1989 team, perfect for display in any sports collection.
- Condition Note – The ball has visible marks, as shown in the images.
Whether you're a die-hard Mariners fan or a dedicated memorabilia collector, this authenticated 1989 team-signed baseball is a true gem. Secure this rare find today!
