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AEDKen Griffey Jr. Signed Seattle Mariners Jersey
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About Auction
LiveJul 20, 2026
Harrington’s is proud to present a Premier Baseball Memorabilia Auction on Monday, July 20, 2026 at 11:00 AM EST (Online Only), featuring an exceptional lineup of investment-grade collectibles tied to baseball’s most iconic figures. Highlights include game-used and signed bats, autographed baseballs, rare vintage baseball cards, and limited-edition signed photos and memorabilia from legends including Mickey Mantle, Babe Ruth, Joe DiMaggio, Willie Mays, Jackie Robinson, Hank Aaron, Sandy Koufax, Ken Griffey Jr, and many more. Harrington's Auctions nicole.c@harringtonsauctions.com
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- Lot Description
Ken Griffey Jr. Signed Seattle Mariners Jersey – Rich Sports Memorabilia (RSM) COA
Seattle Mariners jersey signed by Hall of Fame outfielder Ken Griffey Jr., one of the most celebrated and influential players of the modern baseball era.
Widely regarded as one of the greatest all-around talents in Major League Baseball history, Griffey Jr. combined elite power, defensive brilliance, and effortless athleticism throughout a remarkable Hall of Fame career. A 13-time All-Star, 10-time Gold Glove Award winner, and 1997 American League MVP, “The Kid” remains one of the hobby’s most collected and enduring superstars.
The navy Seattle Mariners jersey features Griffey’s iconic number “24” and has been boldly hand-signed in blue ink on the reverse numeral. The piece displays exceptionally well and is accompanied by a Rich Sports Memorabilia (RSM) authentication hologram affixed directly to the jersey.
Griffey memorabilia continues to see strong collector demand across all segments of the sports memorabilia market, particularly signed Mariners-era material tied to his peak playing years in Seattle. The jersey offers strong display appeal and represents one of the defining stars of the 1990s baseball era.
Authentication & Provenance
Authenticated with Rich Sports Memorabilia (RSM) hologram authentication affixed directly to the jersey.
Condition
The jersey presents in excellent overall condition with clean fabric, vibrant team graphics, and a bold, well-defined signature. Light handling and storage wear may be present. Please refer to photographs for complete condition details.
Details
Player: Ken Griffey Jr.
Team: Seattle Mariners
Item Type: Signed Jersey
Brand: MLB-Licensed Jersey
Size: XL
Authentication: Rich Sports Memorabilia (RSM) Hologram Authentication - Shipping Info
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1. Shipping is calculated based on location, weight and size of item (s). Insurance is included and is strongly recommended, if declined Harrington's Auctions will not be held liable for any damage that occurs once it leaves our facility.
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6. All items will be declared at their full and final sale value for customs purposes. We do not alter or reduce declared values. By Placing a bid, you acknowledge responsibility for any applicable taxes, duties or import fees.
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