Collection: MLB-Seattle Mariners
Shop our collection of Seattle Mariners Authentic Autograph Sports Memorabilia including a selection of signed MLB Baseballs, Baseball Trading Cards, Baseball Bats, Bases, Pitching Rubbers and more. All Autographed collectibles are Authenticated by the top leaders in the Industry including Beckett Authentication Services (BAS), JSA or PSA/DNA. Proof photo of Signing included with purchase (as shown).
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Alex Rodriguez Seattle Mariners Signed 1994 Upper Deck BAS Auth Auto Slab RC
Regular price $ 199.99 USDRegular priceUnit price per -
Baseball Hall of Fame Multi Signed Rawlings HOF Logo Baseball Beckett BAS LOA 17 Sigs
Regular price $ 3,999.99 USDRegular priceUnit price per -
Bret Boone Seattle Mariners Signed 2004 Topps Heritage Baseball Card BAS Auth Auto Slab
Regular price $ 89.99 USDRegular priceUnit price per -
Carl Everett New York Yankees Signed 1991 Topps Rookie Card Beckett Authentic Auto Slab
Regular price $ 69.99 USDRegular priceUnit price per -
Carlos Guillen Seattle Mariners Signed 1998 Fleer Tradition Card Beckett Authentic Auto Slab
Regular price $ 79.99 USDRegular priceUnit price per -
Carlos Guillen Seattle Mariners Signed 1999 Upper Deck MVP Card Beckett Auth Auto Slab
Regular price $ 69.99 USDRegular priceUnit price per -
Derek Lowe Boston Red Sox Signed 1994 Classic Baseball Card Beckett Authentic Auto Slab
Regular price $ 129.99 USDRegular priceUnit price per -
Felix Hernandez Seattle Mariners Signed 2004 Bowman Chrome Draft RC Beckett Auth Auto
Regular price $ 499.99 USDRegular priceUnit price per -
Felix Hernandez Seattle Mariners Signed 2004 Bowman Draft Card Beckett Auth Auto Slab
Regular price $ 299.99 USDRegular priceUnit price per -
Felix Hernandez Seattle Mariners Signed 2004 Bowman First Year Card BAS Auth Auto Slab
Regular price $ 299.99 USDRegular priceUnit price per -
Felix Hernandez Seattle Mariners Signed 2005 Bazooka Baseball Card Beckett Auth Auto Slab
Regular price $ 199.99 USDRegular priceUnit price per -
Felix Hernandez Seattle Mariners Signed 2005 Bazooka Card BGS Auto-10 Graded Slab RC
Regular price $ 249.99 USDRegular priceUnit price per -
Felix Hernandez Seattle Mariners Signed 2005 Topps Bazooka Mini Card Beckett Auth Auto
Regular price $ 219.99 USDRegular priceUnit price per -
Freddy Garcia Seattle Mariners Signed 1999 Bowman Rookie Card Beckett Auth Auto Slab
Regular price $ 129.99 USDRegular priceUnit price per -
Freddy Garcia Seattle Mariners Signed 2000 Skybox Dominion Card Beckett Auth Auto Slab
Regular price $ 99.99 USDRegular priceUnit price per -
Gaylord Perry Mariners Signed 1999 Sports Illustrated Greats Card Beckett Auth Auto Slab
Regular price $ 99.99 USDRegular priceUnit price per -
Ichiro Suzuki Signed Rawlings Baseball Bat, Seattle Mariners, Orix Bluewave, Proof, Beckett
Regular price $ 699.99 USDRegular priceUnit price per -
Jamie Moyer Seattle Mariners Signed 2004 Bowman Heritage Card BGS Auto 10 Graded
Regular price $ 99.99 USDRegular priceUnit price per -
Jamie Moyer Seattle Mariners Signed 2004 Topps Heritage Card Beckett Authentic Auto Slab
Regular price $ 79.99 USDRegular priceUnit price per -
Jamie Moyer Seattle Mariners Signed 2005 Diamond Kings Card Beckett Authentic Auto Slab
Regular price $ 79.99 USDRegular priceUnit price per
Authenticated Autographed Collectibles with Proof Photos
Don't Be Fooled by The Spoof, Buy Authenticated Autographed Memorabilia with Proof!