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  1. baseball Memorabilia
  2. Seattle Mariners
  3. Seattle Mariners Baseballs
  4. Signed
1 - 72 of 152
Baseballs
152 Items
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Carl Everett Signed American League Ball JSA Authenticated
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$625.99
Ichiro Suzuki Signed Official Gold Glove Baseball JSA Sticker ONLY HOF Mariners
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$463.99
Ichiro Suzuki Signed Baseball OMLB Mariners HOF #51 Inscription Autograph JSA
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$295.99
George Kirby Signed Official Baseball JSA COA ROMLB Seattle Mariners Rookie Auto
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$238.99
Bryan Woo signed 2025 MLB ASG All-Star Baseball Mariners autograph ~ JSA COA
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$286.99
Andres Munoz Signed Official Major League Baseball Seattle Mariners JSA Auth
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Logan Gilbert Signed Official Major League Baseball Seattle Mariners JSA Auth #2
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Dylan Moore Signed Official Gold Glove Baseball Seattle Mariners JSA Auth
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Logan Gilbert Mariners Signed Autographed M.l. Baseball Jsa
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Andres Munoz Signed Official Major League Baseball Seattle Mariners JSA Auth #2
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Harry Ford Signed Official Major League Baseball Seattle Mariners JSA Auth
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$286.99
Logan Gilbert Signed Official Major League Baseball Seattle Mariners JSA Auth
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George Kirby Signed Official Major League Baseball Seattle Mariners JSA Auth
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$272.99
Felix Hernandez Cy Pg Mariners Signed Auto Mothers Day Oml Baseball Jsa Beauty
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$501.99
Ken Griffey Jr JSA COA Autograph OAL American League Signed Baseball
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$53.99
Miguel Olivo Autographed Rawlings OML Baseball Seattle Mariners JSA 183207
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Randy Wolf JSA COA Autograph Major League Signed Baseball
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Danny Hultzen Signed MLB Official Major League Baseball JSA Authenticated
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$322.99
Randy Johnson JSA COA Autograph OAL American League Signed Baseball
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Randy Johnson JSA COA Autograph OML Major League Signed Baseball
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$153.99
Luis Castillo Signed Autographed 2022 All-Star Game MLB Baseball JSA AJ35148
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$127.99
Mike Zunino Signed Baseball - Rookie Jsa J08440
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$95.99
Bobby Thigpen 1990 Al Saves Leader Signed Autographed M.l. Baseball Jsa Vv95051
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Autographed HAROLD BAINES "HOF 2019" Official Rawlings HOF Logo Major League Baseball JSA
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Harry Ford Signed Autographed Baseball Mariners Catcher JSA CB83206
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$95.99
D.J. Peterson Autographed Ball - Romlb Jsa Coa #l45312
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$150.99
Alex Rodriguez Signed Autographed AL Baseball Mariners Rangers JSA AW17924
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$117.99
Signed Mark Trumbo Ball - Angels OML
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$135.99
Ken Griffey Sr. Signed/Auto Yankees 100th OML Baseball JSA 186734
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Omar Vizquel Autographed Baseball - Jsa coa
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$507.99
Ken Griffey Jr Ken Griffey Sr Signed Auto Rawlings Baseball JSA LOA ZZ23037
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$726.99
Ichiro Suzuki # 51 Mariners Yankees Marlins Signed Auto Oml Baseball Jsa Letter
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$217.99
Felix Hernandez Cy Young Seattle Mariners Pitcher Signed Auto Oml Jsa Beauty
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$1,372.99
1991 Seattle Mariners Signed Baseball Griffey Big Unit Edgar Vizquel 32 Jsa #2
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$504.99
Ken Griffey Jr JSA COA Autograph American League Signed Baseball 2
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$498.99
Ken Griffey Jr JSA Cert Autograph American League Signed Baseball
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$504.99
Ken Griffey Jr JSA COA Autograph American League Signed Baseball 1
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$532.99
Ken Griffey Jr. & Ken Griffey Sr. Signed American League Baseball JSA COA
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$506.99
Ken Griffey Jr & Sr JSA Coa Autograph American League Signed Baseball
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$770.99
Ichiro Suzuki Autographed Rawlings 2001 All-Star Game Baseball Mariners JSA
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$532.99
Ken Griffey Jr. Signed 1990's American League Baseball JSA COA
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$498.99
Ken Griffey Jr JSA Cert Autograph American League Signed Baseball 2
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$466.99
Ken Griffey Jr JSA COA Autographed American League Signed Baseball
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$548.99
RANDY JOHNSON HOF Signed Autograph OAL Baseball Yankees SWEET SPOT JSA COA
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$192.99
Emerson Hancock Signed Official Major League Baseball Seattle Mariners BAS JSA
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$532.99
Ken Griffey Jr. Early Career Signed American League Baseball JSA COA
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$511.99
Ken Griffey Jr Early JSA Coa Autograph American League OAL Signed BasebaLL
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$466.99
Ken Griffey Jr JSA COA Signed American League Autographed Baseball
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$464.99
Edgar Martinez 309 HR Signed Baseball JSA Witness
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$464.99
Edgar Martinez 2,247 Hits Signed Baseball JSA Witness
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$503.99
Ken Griffey Jr JSA Coa Autograph American League Signed BasebaLL
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$1,280.99
Randy Johnson Signed Official MLB Baseball Mariners 5 Stat Auto HOF CY Young JSA
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$1,155.99
1994 All Star Game Signed Baseball Kirby Puckett Cal Ripken Randy Johnson JSA
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$215.99
Autographed VLADIMIR GUERRERO Official Rawlings HOF Logo Major League Baseball JSA
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$466.99
Ken Griffey Jr JSA COA Autographed American League Signed Baseball
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$190.99
Adam Frazier Signed Official Major League Baseball Seattle Mariners JSA
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$503.99
Ken Griffey Jr JSA Certed Autograph American League OAL Signed BasebaLL
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$888.99
Ken Griffey Jr. Pre Rookie Signed Minor League Game Used Baseball JSA COA
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$36,363.99
1984 Earliest Known Ken Griffey Jr. Signed Baseball JSA LOA + Provenance
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$635.99
Ken Griffey Jr Mariners Reds Hof Signed Auto Vintage Oal Game Used Baseball Jsa
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$385.99
Julio Rodriguez Signed Autographed 2022 Home Run Derby Ball Baseball JSA AJ35096
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$443.99
Ichiro Suzuki Signed Official Rawlings Gold Glove Baseball JSA COA
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$616.99
KEN GRIFFEY JR Signed Autographed American Stamp 259/400 Baseball JSA NN43021
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$212.99
Josh Bard Signed 2020 World Series Baseball Los Angeles Dodgers Champs Jsa Coa
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$194.99
Bryce Miller Signed Official Major League Baseball Seattle Mariners Star JSA
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$735.99
Signed Ichiro Suzuki Ball - 2006 Wbc Single Jsa Mint Petco
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$646.99
Felix Hernandez 2010 AL Cy Young Stat Signed Baseball JSA
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$175.99
2004 Felix Hernandez Pre Rookie Signed Game Used Minor League Baseball JSA COA
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$504.99
Ken Griffey Jr JSA COA Autograph American League Signed Baseball 3
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$443.99
Ken Griffey Jr. Signed 1990's American League Baseball JSA COA
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$539.99
Autographed RANDY JOHNSON "HOF 15" Official Rawlings HOF Logo Major League Baseball JSA
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$506.99
Ken Griffey Jr JSA Cert Autograph American League Signed Baseball