Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
    Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
    Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
    Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
    Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
    Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness
Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness

Ken Griffey Jr. Autographed Mariners 1989 Mitchell & Ness White Cooperstown Jersey – Size XL – Beckett BAS Witness

Regular price
$699.99
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$699.99
Regular price
$999.99
You save $300.00 (30%)
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Celebrate the rookie season of a baseball legend with this Ken Griffey Jr. Autographed Seattle Mariners White Authentic Mitchell & Ness 1989 Cooperstown Collection Jersey. This Size XL jersey features Griffey’s bold signature and is certified authentic by Beckett BAS Witness, making it a rare and highly sought-after collectible for Mariners fans and baseball memorabilia enthusiasts.

Key Features

  • Hand-signed by Ken Griffey Jr., Hall of Fame outfielder
  • Authentic Mitchell & Ness 1989 Cooperstown Collection Jersey
  • Classic white Seattle Mariners jersey, size XL
  • Certified authentic with Beckett BAS Witness
  • Perfect for framing and display in your collection

Player Facts

  • Ken Griffey Jr.: Inducted into the Baseball Hall of Fame in 2016 with 99.3% of the vote
  • 13× All-Star, 10× Gold Glove Award winner, and 7× Silver Slugger
  • 1997 American League MVP
  • Hit 630 career home runs, ranking among the all-time greats
  • Debuted with the Seattle Mariners in 1989, becoming one of the most iconic players of his generation

Specifications

Player Ken Griffey Jr.
Team Seattle Mariners
Item White Mitchell & Ness 1989 Cooperstown Authentic Jersey
Size XL
Autograph Hand-signed by Ken Griffey Jr.
Authentication Beckett BAS Witness Certified
Condition Mint / Bold Signature
Era 1989 Rookie Season
Display Recommendation Professional frame or display case (not included)

Authenticity & Shipping

  • Authenticity: Beckett BAS Witness certification with tamper-proof hologram
  • Condition: Crisp autograph on a clean Mitchell & Ness jersey
  • Packaging: Professionally packed for collector-grade protection
  • Shipping: Free U.S. shipping; worldwide delivery available

Note: This jersey is a collectible display piece and not game-worn.

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