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  1. MLB Memorabilia
  2. Seattle Mariners
  3. Seattle Mariners Baseballs
  4. Signed
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Baseballs
64 Items
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ANDRES MUNOZ (Seattle Mariners) Signed Official MLB Baseball Beckett (BAS)
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LOGAN GILBERT (Mariners) Signed Official 2024 ALL-STAR Baseball Beckett (BAS)
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LUIS CASTILLO (Seattle Mariners) Signed Official MLB Baseball Beckett (BAS)
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ANDRES MUNOZ (Mariners) Signed Official 2025 ALL-STAR Baseball Beckett (BAS)
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CARL EVERETT (Sox) Signed Official 2005 WORLD SERIES Baseball Beckett BAS w/ INS
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EDGAR MARTINEZ (Mariners) Signed Official HALL OF FAME Baseball Beckett (BAS)
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Harry Ford Signed Official Major League Baseball Seattle Mariners JSA Auth
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Julio Rodriguez Seattle Mariners Autographed Rawlings Baseball
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$152.99
Autographed Kazuhiro Sasaki Ball - Official English & Kanji In Staedtler Beckett BAS Stock #115093
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$198.99
Edgar Martinez Autographed Official Hall of Fame HOF Logo Baseball Seattle Mariners Beckett BAS Witness Stock #230600
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$152.99
Kazuhiro Sasaki Signed Ball - Official 2001 All Star English & Kanji In Staedtler Beckett BAS Stock #115090
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Jay Buhner Autographed Official MLB Baseball Seattle Mariners "The Bone" Beckett BAS Witness Stock #238594
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Julio Rodriguez Seattle Mariners Autographed 2025 MLB All-Star Game Logo Baseball
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Edgar Martinez Autographed Official 2023 All Star Game Logo Game Baseball Seattle Mariners Beckett BAS Witness Stock #230599
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Edgar Martinez Autographed Official MLB Baseball Seattle Mariners MCS Holo #64093
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Edgar Martinez Autographed Official 2003 All Star Game Logo MLB Baseball Seattle Mariners MCS Holo #64082
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Edgar Martinez Autographed Official 2003 All Star Game Logo MLB Baseball Seattle Mariners MCS Holo #64075
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Luis Castillo Signed Autographed 2022 All-Star Game MLB Baseball JSA AJ35148
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1987 Seattle Mariners Team Signed Autographed Official AL Baseball With 19 Signatures SKU #220705
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Felix Hernandez PSA DNA Autograph Major League Signed Baseball
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$150.99
Jeremy Reed Hand Signed Baseball Bat Game Used Seattle Mariners COA Cracked
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$157.99
LUIS CASTILLO (Mariners) Signed Official 2019 ALL-STAR Baseball Beckett w/ INSCR
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Ty France 1st ASG Insc Signed Autograph 2022 All-Star Game Baseball JSA AI33525
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Edgar Martinez Seattle Mariners Autographed Baseball
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Edgar Martinez Autographed Official AL Baseball Seattle Mariners MCS Holo #64054
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Edgar Martinez Autographed Official MLB Baseball Seattle Mariners MCS Holo #64030
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GEORGE KIRBY (Mariners) Signed Official 2022 ALL-STAR Baseball Beckett (BAS)
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$150.99
Alex Rodriguez Signed Autographed AL Baseball Mariners Rangers JSA AW17924
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$188.99
Felix Hernandez PSA DNA Autographed Major League Signed Baseball Cy Young
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$192.99
Robinson Cano Signed Oml Baseball Seattle Mariners Ny Yankees Mlb Hologram Auto
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$190.99
Yusei Kikuchi Signed Major League Baseball Seattle Mariners Japan Beckett #2
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Emerson Hancock Signed Official Major League Baseball Seattle Mariner PSA/DNA #2
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RANDY AROZARENA (Mariners) Signed Official 2022 ALL-STAR Baseball Beckett (BAS)
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$175.99
2018 Seattle Mariners Team Signed Official Major League Baseball
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$192.99
Bryce Miller Signed Official Major League Baseball Seattle Mariners Beckett
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$169.99
Felnin Celesten Mariners Signed Autographed Major League Baseball USA SM BAS
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$192.99
Luis Castillo Signed Official Major League Baseball Seattle Mariners Beckett JSA
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$167.99
Felix Hernandez Autographed Rawlings OML Baseball - Beckett W Hologram *Blue
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$173.99
LUIS CASTILLO (Mariners) Signed Official 2022 ALL-STAR Baseball Beckett (BAS)
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$195.99
Alex Rodriguez Signed Autographed Baseball Rangers Mariners MLB AR000017 UDA
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$191.99
Felix Hernandez Autographed Ball - 2014 All Star Beckett S58925
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Adam Frazier Signed Official Major League Baseball Seattle Mariners JSA
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Felix Hernandez Autographed Ball - Major League Ace Beckett
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Colt Emerson Signed Official Major League Baseball Seattle Mariners Star JSA
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$181.99
Signed Dee Gordon Baseball - Official Gold Glove PSA DNA
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$192.99
Emerson Hancock Signed Official Major League Baseball Seattle Mariners BAS JSA
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$173.99
CARL EVERETT Signed Official 2005 WORLD SERIES Baseball Beckett (BAS) w/ INSC
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Felnin Celesten Seattle Mariners Signed Black Major League Baseball USA SM BAS
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YONDER ALONSO SIGNED OML BASEBALL w/ MLB HOLO SEATTLE MARINERS REDS PADRES A's
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BRYAN WOO (Seattle Mariners) Signed Official MLB Baseball Beckett (BAS)
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Kyle Lewis Autographed Baseball
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Carl Everett Signed 2003 Official MLB All Star Game Baseball Beckett W/ Cube
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$194.99
Bryce Miller Signed Official Major League Baseball Seattle Mariners Star JSA
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Ty France Signed Official Major League Baseball Seattle Mariners Slugger JSA
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$180.99
Jarred Kelenic Autographed Omlb Baseball Seattle Mariners Beckett Witness Signed
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$169.99
Felnin Celesten Mariners Signed Autographed Major League Baseball USA SM JSA
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George Kirby Signed Official Major League Baseball Seattle Mariners JSA #3
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$163.99
James Paxton N-h 2018 Seattle Mariners Ny Yankees Signed Auto Oml Baseball Jsa
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Felix Hernandez Signed Official Major League Baseball Seattle Mariners Beckett
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2004 Felix Hernandez Pre Rookie Signed Game Used Minor League Baseball JSA COA
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George Kirby Signed Official Major League Baseball Seattle Mariners Star JSA
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$169.99
Felnin Celesten Mariners Signed Autographed Major League Baseball USA SM BAS #2
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$199.99
Yusei Kikuchi Signed Major League Baseball Seattle Mariners Star Japan PSA/DNA#2
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$163.99
2022 Washington Nationals Pitt Pirate Game Used Baseball Andrew Knapp RBI Double
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