Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners BGS 9.5 Auto Grade Gem Mint 10 Beckett BAS #20520240
Ken Griffey Jr. Autographed 1989 Upper Deck Rookie Card #1 Seattle Mariners BGS 9.5 Auto Grade Gem Mint 10 Beckett BAS #20520240 is backordered and will ship as soon as it is back in stock.
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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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Description
Description
Collector Grade autographed, signed memorabilia: Ken Griffey Jr. 1989 Upper Deck Rookie Card #1 — BGS 9.5 with BAS Gem Mint 10 auto (cert #20520240). Inducted into the National Baseball Hall of Fame in 2016, Griffey Jr. blasted 630 home runs, made 13 All-Star teams, and won 10 Gold Gloves. He captured the 1997 AL MVP and became the face of the Seattle Mariners, making his UD RC #1 the flagship modern baseball card for many collectors.
Collector's Highlights:
- Profession - Athlete: Ken Griffey Jr.
- Item: 1989 Upper Deck Rookie Card #1, hand-signed; BGS 9.5 Gem Mint card grade; Beckett BAS Gem Mint 10 autograph; BAS #20520240; encapsulated in Beckett’s tamper-proof holder
- Authentication: Beckett Authentication Services (BAS) and Beckett Grading Services (BGS)
Certified by Beckett, this verified authentic Griffey rookie pairs a Gem Mint 9.5 card with a Gem Mint 10 signature—exactly what serious collectors look for to protect long-term value. The BAS COA and Beckett holder back the autograph and grading so you can trust the piece and the legacy it represents in baseball memorabilia.
