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1987 Seattle Mariners Team Signed Autographed Official AL Baseball With 19 Signatures SKU #218497

$119

⭑⭑⭑⭑⭑ 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.

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 rare piece of baseball history with this Official American League Baseball, hand-signed by 19 members of the 1987 Seattle Mariners. This autographed ball is a must-have for dedicated Mariners fans and collectors of vintage MLB memorabilia.

  • Authentic team-signed baseball from the 1987 Seattle Mariners roster.
  • Includes 19 player signatures, making it a truly unique collectible.
  • Guaranteed to pass third-party authentication from Beckett, PSA/DNA, & JSA.
  • Perfect for display in a memorabilia collection or as a treasured gift for a Mariners fan.

The 1987 Seattle Mariners season was a defining chapter in the team's history, featuring iconic players who helped shape the franchise. Whether you're a lifelong Mariners supporter or a serious collector of signed sports memorabilia, this baseball is a rare piece of Major League Baseball history that captures the essence of Seattle's baseball legacy. Secure this authenticated treasure today and celebrate your passion for the game!