Up to 25% Off Savings
Up to 25% Off Savings. Each offer has a limited duration that expires at the specified time. Some promotions may require that you enter a code. By making a purchase featuring a discount or promotion, including where a code may be required, you are agreeing to these terms and exclusions. Generally, eligibility will be as reflected in the price shown on the product page. However, discounts and promotions for certain products may only appear once an item is added to the cart and the code is entered. Prices and fees, including any applicable discount(s), will be as reflected in the cart. Only the as-discounted retail price (excluding applicable shipping, taxes, and handling fees) counts toward any minimum spend required for eligibility. If a rewards program applies, the rewards may only apply to the as-discounted retail price. Discounts and promotions do not apply to gift cards. Gift card purchases do not count toward any minimum spend required for eligibility. Exclusions may apply, including: all auctions and product drops; product that is already on sale, of limited quantity, for recent championship or other special events; trading cards and certain memorabilia; select jerseys, on-field headwear, die cast and certain collectibles; and certain premium brand product. Additional terms and other exclusions may apply in our sole discretion. Items listed as FINAL SALE on the product page are final sale and cannot be returned. Free shipping promotions are valid in Continental U.S., US Territories, and AFO/FPO only, such promotions exclude heavy, large, and/or bulky items, and free shipping does not apply to the extent your cart at checkout contains any excluded item(s). Shipping method and timing may vary. Expected delivery times are based on in-stock items and the specified zip code, if applicable. Delivery estimates are not guaranteed.
  1. baseball Memorabilia
  2. Seattle Mariners
  3. Signed
1 - 72 of 338
Your Search
BaseballsHelmetsJerseysPhotosTrading CardsSale Items
338 Items
BaseballsHelmetsJerseysPhotosTrading CardsSale Items
Almost Gone!
$134.99
$179.99
Sale
Julio Rodriguez Seattle Mariners Autographed 16" x 20" Hitting Photograph
Almost Gone!
$107.99
$119.99
Sale
EDGAR MARTINEZ Signed 1990 Donruss Diamond KingBaseball Card #16 PSA AUTO 10
Almost Gone!
$148.99
$164.99
Sale
EDGAR MARTINEZ Signed 1988 Fleer ROOKIE Baseball Card #378 PSA AUTO 10
$137.99
$152.99
Sale
Edgar Martinez Autographed 8x10 Photo Seattle Mariners (The Double) Beckett BAS Witness Stock #252463
Almost Gone!
$137.99
$152.99
Sale
Domingo Ramos Unsigned Game Used Bat Rawlings I55S Seattle Mariners SKU #253160
Almost Gone!
$137.99
$152.99
Sale
Jim Presley Unsigned Game Used Bat Rawlings Seattle Mariners SKU #253151
Almost Gone!
$137.99
$152.99
Sale
Julio Cruz Unsigned Game Used Bat Louisville Slugger C314 Seattle Mariners SKU #253139
Almost Gone!
$137.99
$152.99
Sale
David Henderson Unsigned Game Used Bat Louisville Slugger K75 Seattle Mariners SKU #253146
Almost Gone!
$137.99
$152.99
Sale
Phil Bradley Unsigned Game Used Bat Louisville Slugger R161 Seattle Mariners SKU #253153
Almost Gone!
$137.99
$152.99
Sale
Spike Owen Unsigned Game Used Bat Louisville Slugger R161 Seattle Mariners SKU #253148
Almost Gone!
$142.99
$158.99
Sale
ANDRES MUNOZ (Seattle Mariners) Signed Official MLB Baseball Beckett (BAS)
Almost Gone!
$142.99
$158.99
Sale
LOGAN GILBERT (Mariners) Signed Official 2024 ALL-STAR Baseball Beckett (BAS)
Almost Gone!
$142.99
$158.99
Sale
LUIS CASTILLO (Seattle Mariners) Signed Official MLB Baseball Beckett (BAS)
Almost Gone!
$127.99
$141.99
Sale
LOGAN GILBERT (Seattle Mariners) Signed Official MLB Baseball Beckett (BAS)
Almost Gone!
$142.99
$158.99
Sale
ANDRES MUNOZ (Mariners) Signed Official 2025 ALL-STAR Baseball Beckett (BAS)
Almost Gone!
$147.99
$163.99
Sale
2000s Seattle Mariners Game Used Navy Jersey Batting Practice Spring Training
Almost Gone!
$100.99
$111.99
Sale
Logan Gilbert Mariners Signed Autographed M.l. Baseball Beckett
Almost Gone!
$100.99
$111.99
Sale
Logan Gilbert Mariners Signed Autographed M.l. Baseball Jsa
Almost Gone!
$100.99
$111.99
Sale
Logan Gilbert Mariners Signed Autographed M.l. Baseball Beckett
$149.99
$199.99
Sale
Julio Rodriguez Seattle Mariners Autographed Rawlings Baseball
Most Popular in Collectibles & Memorabilia
Almost Gone!
$117.99
$130.99
Sale
1989 Donruss Baseball 24-Pack Unsealed Cello Box Ken Griffey Jr. Rookie Year
Almost Gone!
$137.99
$152.99
Sale
Ken Griffey Jr Autographed 4"x7" Photo Seattle Mariners Beckett BAS #18284487
Almost Gone!
$109.99
$121.99
Sale
Alex Rodriguez Autographed 1994 Classic Card #C11 Seattle Mariners Beckett BAS #18283552
Almost Gone!
$112.99
$124.99
Sale
2023 Topps Living Bryce Miller Rookie Auto Seattle Mariners #672 COA RC Card
Almost Gone!
$112.99
$124.99
Sale
2022 Topps Living George Kirby Rookie Auto Seattle Mariners #554 COA RC Card
$137.99
$152.99
Sale
Autographed Kazuhiro Sasaki Ball - Official English & Kanji In Staedtler Beckett BAS Stock #115093
$137.99
$152.99
Sale
Edgar Martinez Autographed Hall of Fame HOF Plaque Postcard Seattle Mariners MCS Holo Stock #211275
$109.99
$121.99
Sale
Kazuhiro Sasaki Autographed Official MLB Baseball Seattle Mariners "2000 ROY" In Staedtler Beckett BAS Stock #115089
$109.99
$121.99
Sale
Felnin Celesten Autographed 2023 1st Bowman Chrome Rookie Card #BCP156 Seattle Mariners Beckett BAS Stock #227988
$109.99
$121.99
Sale
Jay Buhner Autographed Official MLB Baseball Seattle Mariners Beckett BAS Witness Stock #238595
$109.99
$121.99
Sale
Frank Thomas Autographed 1990 Topps Rookie Card #414 Chicago White Sox Auto Grade Gem Mint 10 Beckett BAS Stock #211362
$109.99
$121.99
Sale
Kazuhiro Sasaki Autographed Ball - Official 2001 All Star In Staedtler Beckett BAS Stock #115088
$137.99
$152.99
Sale
Kazuhiro Sasaki Signed Ball - Official 2001 All Star English & Kanji In Staedtler Beckett BAS Stock #115090
$109.99
$121.99
Sale
Greg Halman Autographed Bat - Rawlings Rookiegraph PSA DNA
$123.99
$137.99
Sale
Edgar Martinez Autographed 1988 Procards Rookie Card #782 Seattle Mariners Beckett BAS Stock #147105
$109.99
$121.99
Sale
Logan Gilbert Autographed 16x20 Photo Seattle Mariners 1st MLB Win MCS Holo Stock #205611
$137.99
$152.99
Sale
Jay Buhner Autographed Official MLB Baseball Seattle Mariners "The Bone" Beckett BAS Witness Stock #238594
$109.99
$121.99
Sale
Robbie Ray Autographed Official MLB Baseball San Francisco Giants Beckett BAS QR Stock #205861
$109.99
$121.99
Sale
Bryce Miller Autographed Official MLB Baseball Seattle Mariners "Miller Time!" MCS Holo Stock #234567
$109.99
$121.99
Sale
Bryce Miller Autographed Official MLB Baseball Seattle Mariners "MLB Debut 5/2/23" MCS Holo Stock #234566
$123.99
$137.99
Sale
Edgar Martinez Autographed 1988 Donruss The Rookies Rookie Card #36 Seattle Mariners Beckett BAS Stock #147090
Almost Gone!
$134.99
$179.99
Sale
Julio Rodriguez Seattle Mariners Autographed 11" x 14" Hitting Spotlight Photograph
Almost Gone!
$134.99
$149.99
Sale
Rich Gossage Gem Mint 10 Beckett BAS Signed 1973 Topps Rookie Autograph
Almost Gone!
$137.99
$152.99
Sale
Ken Griffey Sr. Autographed Official Game Used MacPhail AL Baseball New York Yankees Beckett BAS Witness #2W796828
Almost Gone!
$144.99
$160.99
Sale
Edgar Martinez Gem Mint 10 Beckett BAS Signed 2020 Topps Allen & Ginter Autograp
Almost Gone!
$144.99
$160.99
Sale
Edgar Martinez Gem Mint 10 Beckett BAS Signed 2021 Topps Allen & Ginter Autograp
Almost Gone!
$144.99
$160.99
Sale
Edgar Martinez Gem Mint 10 Beckett BAS Signed 2022 Topps Allen & Ginter Mini Aut
Almost Gone!
$123.99
$137.99
Sale
Edgar Martinez Autographed 11x14 Photo Seattle Mariners MCS Holo #64225
Almost Gone!
$109.99
$121.99
Sale
Edgar Martinez Autographed Official MLB Baseball Seattle Mariners MCS Holo #64094
Almost Gone!
$123.99
$137.99
Sale
Edgar Martinez Autographed 11x14 Photo Seattle Mariners MCS Holo #64223
Almost Gone!
$109.99
$121.99
Sale
Edgar Martinez Autographed Official MLB Baseball Seattle Mariners MCS Holo #87158
Almost Gone!
$123.99
$137.99
Sale
Edgar Martinez Autographed 11x14 Photo Seattle Mariners MCS Holo #64224
Almost Gone!
$123.99
$137.99
Sale
Edgar Martinez Autographed 11x14 Photo Seattle Mariners MCS Holo #64222
Almost Gone!
$123.99
$137.99
Sale
Edgar Martinez Autographed 11x14 Photo Seattle Mariners MCS Holo #64226
Almost Gone!
$137.99
$152.99
Sale
Edgar Martinez Autographed Official MLB Baseball Seattle Mariners MCS Holo #64093
Almost Gone!
$123.99
$137.99
Sale
Edgar Martinez Autographed 11x14 Photo Seattle Mariners MCS Holo #64227
Almost Gone!
$149.99
$199.99
Sale
Cal Raleigh Seattle Mariners Autographed 11" x 14" Home Run Spotlight Photograph
Almost Gone!
$147.99
$163.99
Sale
2020 Detroit Tigers Rick Anderson #4 Game Issued Navy Jersey 48 DP21066
Almost Gone!
$147.99
$163.99
Sale
1998 Jupiter Hammerheads Milton Bradley #6 Game Used Signed Red Jersey 46 80
Almost Gone!
$144.99
$160.99
Sale
Joe Decker Beckett BAS Signed 1974 Topps Autograph
Almost Gone!
$147.99
$163.99
Sale
Philadelphia Phillies James Pazos #47 Game Used Red Jersey Ex ST BP XL DP44392
Almost Gone!
$131.99
$146.99
Sale
Cliff Lee Autographed Ball - Wschamps Jsa coa
Almost Gone!
$117.99
$130.99
Sale
Omar Vizquel Autographed Baseball - Jsa coa
Almost Gone!
$147.99
$163.99
Sale
2022 Memphis Redbirds Ljay Newsome #50 Game Used Black Jersey Monarch 46 445
Almost Gone!
$117.99
$130.99
Sale
2019 Kolten Wong Game-Used adidas Batting Gloves Grey/Grey COA
Almost Gone!
$117.99
$130.99
Sale
Seattle Mariners #44 Game Used Navy Hat 7.25 DP22635
Almost Gone!
$137.99
$152.99
Sale
Julio Rodriguez Autographed 2021 Bowman Chrome Draft Card #BDC145 Seattle Mariners Beckett BAS #16545722
Almost Gone!
$137.99
$152.99
Sale
Julio Rodriguez Autographed 2023 Topps Card #174 Seattle Mariners Auto Grade Gem Mint 10 Beckett BAS #17040147
Almost Gone!
$103.99
$115.99
Sale
Felix Hernandez Autographed Pacific Coast League Game Used Baseball Seattle Mariners "2005 PCL Game Used" PSA/DNA #4A52835
Almost Gone!
$106.99
$118.99
Sale
Ichiro Suzuki 2020 Stadium Club Blue #d 22/50
Almost Gone!
$112.99
$124.99
Sale
Kyle Lewis Signed 2020 Topps Living Set Card #334 COA Seattle Mariners Rookie RC
Almost Gone!
$117.99
$130.99
Sale
Felix Hernandez Seattle Mariners SIGNED AUTOGRAPHED All-Star Game 8x10 Photo JSA
BaseballsHelmetsJerseysPhotosTrading CardsSale Items