Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Beckett BAS #19211191

$719

⭑⭑⭑⭑⭑ 4.9/5 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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Collector-Grade, Authenticated Autographed Rookie Card Autographed, signed memorabilia featuring Ken Griffey Jr.’s iconic 1989 Upper Deck Rookie Card #1, certified by Beckett Authentication Services (BAS) and encapsulated in a tamper-proof holder (BAS #19211191). A 2016 first-ballot Hall of Famer, Griffey was a 13-time All-Star, 1997 AL MVP, and won 10 Gold Gloves while finishing with 630 career home runs. This landmark rookie is the hobby’s modern-era touchstone and a must-have for Seattle Mariners collectors.

Collector's Highlights:

  • Athlete: Ken Griffey Jr.
  • Item: 1989 Upper Deck Rookie Card #1, hand-signed; Seattle Mariners; Beckett BAS-encapsulated
  • Authentication: Beckett Authentication Services (BAS) — tamper-proof holder; Cert #19211191

Verified authentic by Beckett, this Griffey rookie auto is a trusted piece of baseball history and a strong choice for any serious memorabilia collection. The BAS certification and encapsulation provide enduring confidence and support long-term value for collectors focused on blue-chip rookie signatures.