Mariners HOF Ken Griffey Jr. Signed / Autographed Baseball Jersey Upper Deck COA - Key Biscayne Magazine

Take your Seattle Mariners memorabilia collection to the next level with this Ken Griffey Jr. It features a hand-signed autograph from the 2016 Baseball Hall of Fame inductee.

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Take your Seattle Mariners memorabilia collection to the next level with this Ken Griffey Jr. autographed baseball. It features a hand-signed autograph and inscription from the 2016 Baseball Hall of Fame inductee. Griffey Jr. was drafted first overall by the Mariners in 1987, placed third in AL Rookie of the Year in '89, then earned All-Star Game selections and Gold Glove awards in each of the next 10 years.

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