Compton Youth Academy Auction: Ken Griffey Jr. Autographed

Bowman and Gum Inc. – SABR's Baseball Cards Research Committee

I sent the ball to Beckett and as you can see they certified it. It has both holograms that you can follow for more info.

Rare Ken Griffey Jr 600th Home Run Game Used Ball Autographed Beckett

Ken Griffey Jr Autographed Hall of Fame HOF 16 Signed Baseball Beckett

November 2021 Auction catalog - Holabird Americana - Page 1 - 276, Flip PDF Online

Autographed Ken Griffey Jr Baseball Cards for sale

Mike Compton Values - MAVIN

Ken Griffey Jr. at center of first HBCU Swingman Classic

Fleer Ken Griffey Jr Baseball Autographed Sports Trading Cards & Accessories for sale

Autographed Ken Griffey Jr Baseball Cards for sale

MLB Youth Foundation Golf Auction - Ken Griffey Jr. Autographed National League All-Star Jersey

Ken Griffey Jr. Autographed 1999 SPX Winning Materials Card #JR Seattle Mariners BGS 9 Auto Grade Mint 9 With Game Used Jersey & Bat Relic Beckett BAS #15465320 - Mill Creek Sports

Mike Compton Values - MAVIN

Ken Griffey Jr Rookie Autographed for Sale in Modesto, CA - OfferUp

Fleer Ken Griffey Jr Baseball Autographed Sports Trading Cards & Accessories for sale

Autographed Ken Griffey Jr Baseball Cards for sale