Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Beckett BAS #19211143
Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners Beckett BAS #19211143 is backordered and will ship as soon as it is back in stock.
⭑⭑⭑⭑⭑ 4.9/5 Stars from Real Collectors
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Authenticity Guaranteed
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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Collector Grade, Authenticated Autographed Rookie Card: Autographed and signed memorabilia: Ken Griffey Jr.’s 1989 Upper Deck Rookie Card #1, authenticated and encapsulated by Beckett Authentication Services (BAS). A first-ballot Hall of Famer in 2016 with a then-record 99.3% vote, Griffey smashed 630 home runs, won the 1997 AL MVP, and earned 13 All-Star selections with the Seattle Mariners.
Collector's Highlights:
- Athlete: Ken Griffey Jr.
- Item: 1989 Upper Deck Rookie Card #1 — hand-signed (Seattle Mariners)
- Authentication: Beckett Authentication Services (BAS) — Encapsulated, Cert #19211143
Certified by Beckett, the industry-respected COA and tamper-proof holder protect the signature and support long-term collectability. This verified authentic Griffey rookie is a core piece for serious baseball card and Mariners collections.
