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  1. MLB Memorabilia
  2. Seattle Mariners
  3. Seattle Mariners Baseballs
  4. Signed
1 - 72 of 76
Baseballs
76 Items
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Bobby Thigpen Signed Rawlings Official MLB Baseball w/57 Saves 1990
$75.99
Cade Marlowe Autographed Official MLB Baseball Seattle Mariners MCS Holo Stock #222012
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$90.99
Signed Kazuhiro Sasaki Baseball - Official In Staedtler Beckett BAS Stock #115092
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$90.99
Bryce Miller Autographed Official MLB Baseball Seattle Mariners MCS Holo Stock #234568
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Autographed Kazuhiro Sasaki Baseball - Official Beckett BAS Stock #115091
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Jeremy Reed Autographed Official MLB Baseball Seattle Mariners 12 Count Lot MCS Holo Stock #238531
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Edgar Martinez Autographed Official Seattle Mariners Logo MLB Baseball Seattle Mariners SKU #249372
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Jose Lopez Autographed Official MLB Baseball Seattle Mariners 12 Count Lot MCS Holo Stock #238533
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$75.99
Jay Buhner Autographed Official MLB Baseball Seattle Mariners MCS Holo #64087
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Jamie Moyer Autographed Official 2003 All Star Game Logo MLB Baseball Seattle Mariners MCS Holo #64078
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Jay Buhner Autographed Official MLB Baseball Seattle Mariners MCS Holo #87157
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$85.99
Victor Robles Signed Auto Rawlings Baseball JSA CF42446
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Felix Hernandez Autographed Official MLB Baseball Seattle Mariners "P.G. 8-15-12" PSA/DNA #4A52886
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Tom Paciorek Autographed Ball - 1981 All Star M l Beckett Y12744
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Mike Zunino Autographed Baseball - Tampa Bay Rays M l Beckett H31981
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$97.99
Bob Galasso Seattle Mariners 1977 Signed Oml Baseball
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$81.99
Yuniesky Betancourt Mariners Signed Autograph Official OMLB Baseball PSA DNA
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Hisashi Iwakuma Autographed Baseball - Official Opening Series Holo #EK015990
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$95.99
D.J. Peterson Autographed Baseball - Romlb Rookie Graph Psa dna Coa #r28946
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Leonys Martin Cuba/tigers/cubs Signed Auto M.l. Baseball Bas Authenticated
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Felix Hernandez Autographed Official MLB Baseball Seattle Mariners "P.G. 8-15-13" PSA/DNA #4A52880
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Felix Hernandez Autographed NW League Game Used Baseball Seattle Mariners PSA/DNA #I16422
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$89.99
Autographed DICK DRAGO Official Major League Baseball
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Michael Arroyo Seattle Mariners Signed Autographed M.l. Baseball Bas Beckett *
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$97.99
2021 Seattle Mariners Col Rockies Game Used Baseball Ramirez K Story strike out
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$94.99
BRADEN BISHOP signed (SEATTLE MARINERS) Official Major League baseball W/COA
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$90.99
Signed Hisashi Iwakuma Baseball - Holo #EK693758
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Bobby Thigpen 1990 Al Saves Leader Signed Autographed M.l. Baseball Jsa Vv95051
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Autographed Jesus Montero Baseball - #63 Single Selig Hologram
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$79.99
Gordon Beckham Autographed Official Major League Baseball (JSA)
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$92.99
Leonys Martin Autograph Signed Official Major League Ball JSA Authentic
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$86.99
Leonys Martin Autograph Signed Official Major League Ball JSA Authentic
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Jay Buhner Autographed Official AL Baseball Seattle Mariners MCS Holo #87009
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$79.99
Pat Putnam 1983-84 Mariners Signed Auto M.l. Baseball Bas Authenticated
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$75.99
Kazuhiro Sasaki Autographed Official AL Baseball Seattle Mariners Beckett BAS QR #BN13277
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$81.99
Mark Langston Mariners Angels Signed Autograph OMLB Baseball PSA DNA *06
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$81.99
Mark Langston Mariners Angels Signed Autograph OMLB Baseball PSA DNA *12
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$79.99
Chasen Bradford Signed Major League Baseball In Blue Pen JSA Authenticated
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Felix Hernandez Autographed Official MLB Baseball Seattle Mariners "P.G. 8-15-12" PSA/DNA #4A52892
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$84.99
Hisashi Iwakuma Signed Official Baseball COA ROMLB Seattle Mariners All Star ASG
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Felix Hernandez Autographed Official MLB Baseball Seattle Mariners "P.G. 8-15-12" PSA/DNA #4A52879
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$95.99
D.J. Peterson Autographed Ball - Romlb Jsa Coa #l45312
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Marcus Wilson Seattle Mariners Rookie Year Signed M.l. Baseball Bas R41440
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$86.99
JUSTIN DUNN signed Baseball PSA/DNA Seattle Mariners
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$79.99
Marco Gonzales Seattle Mariners Signed Auto M.l. Baseball Beckett Authenticated
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$79.99
Nick Neidert Baseball - Singed Debut Jsa Sd30541
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$95.99
Colt Emerson Mariners Signed Auto M.l. Baseball Beckett Auth
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$95.99
Bobby Thigpen 1993 Nl Champs Signed Autographed M.l. Baseball Bas Authenticated
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$97.99
Hisashi Iwakuma Autographed Ball - Oml
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$97.99
2016 Mariners Rangers Game Used Baseball Claudio Franklin Gutierrez Single
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$95.99
Michael Arroyo Seattle Mariners Signed Autographed M.l. Baseball Bas Beckett
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$79.99
Marco Gonzales Seattle Mariners Signed Auto M.l. Baseball Beckett Authenticated
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$81.99
Ken Phelps Seattle Mariners Signed Oml Ball
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$81.99
Tom Paciorek Signed Baseball - 1981 All Star Oml
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$79.99
Benny Agbayani Mets Signed Autographed M.l. Baseball Beckett Auth
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$89.99
Hong-Chih Kuo Signed Baseball - La Dodgers Romlb Psa dna Coa #x56493
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$96.99
Signed Erik Bedard Baseball - 'd OMLB PSA DNA COA
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$95.99
Bobby Thigpen 1990 Al Saves Leader Signed Auto M.l. Baseball Bas Authenticate
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$86.99
JUSTIN DUNN signed Baseball PSA/DNA Seattle Mariners
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$79.99
Dee Gordon Signed Baseball - Tommy Davis
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$90.99
Bret Boone Autographed Official 2001 All Star Game Logo Baseball Seattle Mariners MCS Holo #87021
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D.J. Peterson Signed Ball - Romlb Jsa Coa #l52204
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$86.99
JUSTIN DUNN signed Baseball PSA/DNA Seattle Mariners
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$75.99
Felix Hernandez Autographed Official MLB Baseball Seattle Mariners "P.G. 8-15-12" PSA/DNA #4A52876
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$75.99
Felix Hernandez Autographed 2005 PCL Game Used Baseball Seattle Mariners PSA/DNA ITP #4A52854
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$75.99
JESUS MONTERO Signed "63" AutographPSA Baseball MLB Limited Edition #5/63 JSA
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$79.99
Marco Gonzales Seattle Mariners Signed Auto M.l. Baseball Beckett Authenticated
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$95.99
Bobby Thigpen 1990 Al Saves Leader Signed Autographed M.l. Baseball Jsa Vv95052
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$85.99
Autographed Hisashi Iwakuma Baseball - Psa dna
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$75.99
Jay Buhner Autographed Official MLB Baseball Seattle Mariners MCS Holo #87269
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$82.99
Bryan LaHair Signed Baseball w/COA Official MLB 2012 Chicago Cubs All Star
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$75.99
Braden Bishop Signed Official Major League Baseball w/COA Seattle Mariners