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    • Beckett Authentication Services (BAS) Seattle Mariners Original Sports Autographed Items

    Beckett Authentication Services (BAS) Seattle Mariners Original Sports Autographed Items

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      • Autograph Authentication: Beckett Authentication Services (BAS) filter applied
      • Team: Seattle Mariners filter applied
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      • Beckett Authentication Services (BAS) filter applied
      • Seattle Mariners filter applied
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    • Kyle Lewis Mariners Signed 2020 Topps Chrome 1 #186 Beckett 9.5/10 Rookie Card

      Kyle Lewis Mariners Signed 2020 Topps Chrome 1 #186 Beckett 9.5/10 Rookie Card

      RM 926.58
      Was: RM 1,047.04
      RM 69.19 shipping
      SPONSORED
    • Kyle Lewis Seattle Mariners Signed 2020 Topps Chrome Beckett 9.5/10 Rookie Card

      Kyle Lewis Seattle Mariners Signed 2020 Topps Chrome Beckett 9.5/10 Rookie Card

      RM 926.58
      Was: RM 1,047.04
      RM 69.19 shipping
      SPONSORED
    • Dave Niehaus Autographed baseball. HOF 08 inscription Beckett Authentication

      Dave Niehaus Autographed baseball. HOF 08 inscription Beckett Authentication

      RM 878.09
      RM 91.38 shipping
      or Best Offer
      SPONSORED
    • Kyle Lewis Seattle Mariners Signed 2020 Topps Chrome #186 Beckett 10 Rookie Card

      Kyle Lewis Seattle Mariners Signed 2020 Topps Chrome #186 Beckett 10 Rookie Card

      RM 370.61
      Was: RM 598.29
      RM 60.85 shipping
      or Best Offer
      SPONSORED
    • Julio Rodriguez ROY Mariners Autographed Major League Baseball Beckett Certified

      Julio Rodriguez ROY Mariners Autographed Major League Baseball Beckett Certified

      RM 1,231.09
      0 bids
      RM 148.22 shipping
      Ending Apr 9 at 8:30AM MYT6d 21h
      or Best Offer
    • JULIO RODRIGUEZ AUTOGRAPHED RAWLINGS GAME MODEL BAT MARINERS BECKETT BELOW COMP

      JULIO RODRIGUEZ AUTOGRAPHED RAWLINGS GAME MODEL BAT MARINERS BECKETT BELOW COMP

      RM 882.50
      RM 218.55 shipping
    • Julio Rodriguez Signed White Pro Style Jersey Autographed BECKETT STICKER!

      Julio Rodriguez Signed White Pro Style Jersey Autographed BECKETT STICKER!

      RM 882.46
      RM 123.77 shipping
      or Best Offer
    • Autographed MLB Julio Rodriguez & Jared Kelenic Seattle Mariners The Rookies JSA

      Autographed MLB Julio Rodriguez & Jared Kelenic Seattle Mariners The Rookies JSA

      RM 882.46
      0 bids
      RM 104.36 shipping
      Ending Saturday at 1:34PM MYT6d 2h
      or Buy It Now
    • ICHIRO SUZUKI 2001 ROOKIE SEASON AUTOGRAPHED BASEBALL SEATTLE MARINERS CERTIFIED

      ICHIRO SUZUKI 2001 ROOKIE SEASON AUTOGRAPHED BASEBALL SEATTLE MARINERS CERTIFIED

      RM 1,301.69
      0 bids
      RM 101.49 shipping
      Ending Friday at 5:03AM MYT4d 17h
      or Buy It Now
    • Ken Griffey Jr. Signed Louisville Slugger Pro Stock Full Size Bat BAS Authentic

      Ken Griffey Jr. Signed Louisville Slugger Pro Stock Full Size Bat BAS Authentic

      RM 1,985.58
      RM 314.66 shipping
      16 watching
    • Cubs Billy Williams Signed Louisville Slugger Pro Stock Baseball Bat Beckett COA

      Cubs Billy Williams Signed Louisville Slugger Pro Stock Baseball Bat Beckett COA

      RM 436.84
      RM 343.69 shipping
    • Ken Griffey Jr Signed Seattle Mariners Teal Nike Jersey Autograph BAS

      Ken Griffey Jr Signed Seattle Mariners Teal Nike Jersey Autograph BAS

      RM 2,382.70
      RM 180.47 shipping
      or Best Offer
    • Logan Gilbert Mariners Auto Signed Baseball Beckett COA 1st MLB Win 6-6-21

      Logan Gilbert Mariners Auto Signed Baseball Beckett COA 1st MLB Win 6-6-21

      RM 291.18
      0 bids
      RM 113.58 shipping
      Ending Wednesday at 10:08AM MYT2d 22h
    • 2001 Upper Deck Victory ICHIRO SUZUKI Signed Baseball Rookie Card Beckett BAS 10

      2001 Upper Deck Victory ICHIRO SUZUKI Signed Baseball Rookie Card Beckett BAS 10

      RM 2,153.30
      RM 98.80 shipping
      or Best Offer
      SPONSORED
    • Seattle Mariners JULIO RODRIGUEZ Signed Beckett Magazine JSA

      Seattle Mariners JULIO RODRIGUEZ Signed Beckett Magazine JSA

      RM 750.08
      RM 66.19 shipping
      or Best Offer
      SPONSORED
    • Ken Griffey Jr Autographed Hall of Fame HOF 16 Signed Baseball Beckett COA

      Ken Griffey Jr Autographed Hall of Fame HOF 16 Signed Baseball Beckett COA

      RM 2,201.84
      RM 111.55 shipping
      or Best Offer
      31 watching
      SPONSORED
    • Logan Gilbert Seattle Mariners Auto Signed Baseball Beckett Witness COA .

      Logan Gilbert Seattle Mariners Auto Signed Baseball Beckett Witness COA .

      RM 220.58
      0 bids
      RM 112.52 shipping
      Ending Wednesday at 10:08AM MYT2d 22h
    • Ichiro Suzuki Signed Allen & Ginter Card Beckett BAS Coa Slabbed Encapsulated

      Ichiro Suzuki Signed Allen & Ginter Card Beckett BAS Coa Slabbed Encapsulated

      RM 1,098.71
      RM 91.65 shipping
      or Best Offer
    • FELIX HERNANDEZ SEATTLE MARINERS SIGNED / AUTOGRAPHED JERSEY BECKETT COA NICE!

      FELIX HERNANDEZ SEATTLE MARINERS SIGNED / AUTOGRAPHED JERSEY BECKETT COA NICE!

      RM 1,235.28
      RM 97.07 shipping
      or Best Offer
    • Seattle Mariners Julio Rodriguez Autographed White Nike Jersey

      Seattle Mariners Julio Rodriguez Autographed White Nike Jersey

      RM 1,892.96
      RM 149.94 shipping
      or Best Offer
    • Nice Ken Griffey Jr Signed Autographed Big Stick Baseball Bat Mariners HOF 442

      Nice Ken Griffey Jr Signed Autographed Big Stick Baseball Bat Mariners HOF 442

      RM 2,025.34
      RM 277.41 shipping
      or Best Offer
    • Ken Griffey Jr Signed Autographed Baseball Mariners HOF Beckett 46

      Ken Griffey Jr Signed Autographed Baseball Mariners HOF Beckett 46

      RM 1,010.46
      RM 119.84 shipping
      or Best Offer
    • BECKETT FELIX HERNANDEZ SIGNED MAJOR LEAGE BUD SELIG GAME BASEBALL BD42521

      BECKETT FELIX HERNANDEZ SIGNED MAJOR LEAGE BUD SELIG GAME BASEBALL BD42521

      RM 344.13
      RM 83.40 shipping
      or Best Offer
    • BECKETT FELIX HERNANDEZ 3-13-2006 SIGNED ESPN THE MAGAZINE FULL ISSUE BD42525

      BECKETT FELIX HERNANDEZ 3-13-2006 SIGNED ESPN THE MAGAZINE FULL ISSUE BD42525

      RM 66.14
      0 bids
      RM 120.37 shipping
      Ending Monday at 8:57AM MYT21h 41m
    • THE KING!!! Felix Hernandez SEATTLE MARINERS Signed AUTHENTIC Jersey Beckett BAS

      THE KING!!! Felix Hernandez SEATTLE MARINERS Signed AUTHENTIC Jersey Beckett BAS

      RM 1,301.69
      RM 150.69 shipping
      or Best Offer
    • Julio Rodriguez Autographed Seattle Mariners Custom Blue Baseball Jersey - BAS

      Julio Rodriguez Autographed Seattle Mariners Custom Blue Baseball Jersey - BAS

      RM 882.28
      RM 143.67 shipping
      51 watching
    • Julio Rodriguez Signed Major League Baseball MLB BAS

      Julio Rodriguez Signed Major League Baseball MLB BAS

      RM 1,213.39
      RM 148.26 shipping
      or Best Offer
    • George Kirby Mariners Auto Signed Baseball Beckett Witness Hologram #SEAUSRISE

      George Kirby Mariners Auto Signed Baseball Beckett Witness Hologram #SEAUSRISE

      RM 286.77
      0 bids
      RM 113.49 shipping
      Ending Wednesday at 10:28AM MYT2d 23h
    • DICK WILLIAMS SIGNED AUTOGRAPHED 8x10 PHOTO SEATTLE MARINERS MANAGER BECKETT BAS

      DICK WILLIAMS SIGNED AUTOGRAPHED 8x10 PHOTO SEATTLE MARINERS MANAGER BECKETT BAS

      RM 286.81
      RM 61.77 shipping
      or Best Offer
      SPONSORED
    • Mariners Edgar Martínez Authentic Signed 11x14 HOF Edit Photo BAS Witnessed

      Mariners Edgar Martínez Authentic Signed 11x14 HOF Edit Photo BAS Witnessed

      RM 551.52
      Was: RM 656.58
      RM 113.22 shipping
      or Best Offer
      5 watching
      SPONSORED
    • Ken Griffey Jr. Autographed Seattle Mariners Jersey Beckett COA

      Ken Griffey Jr. Autographed Seattle Mariners Jersey Beckett COA

      RM 3,525.59
      RM 243.79 shipping
      or Best Offer
      SPONSORED
    • FELIX HERNANDEZ SIGNED AUTOGRAPHED 8x10 PHOTO SEATTLE MARINERS HERO BECKETT BAS

      FELIX HERNANDEZ SIGNED AUTOGRAPHED 8x10 PHOTO SEATTLE MARINERS HERO BECKETT BAS

      RM 507.44
      RM 61.77 shipping
      or Best Offer
      SPONSORED
    • Logan Gilbert Mariners Auto Signed 8x10 Photo Beckett WITNESS COA _

      Logan Gilbert Mariners Auto Signed 8x10 Photo Beckett WITNESS COA _

      RM 132.33
      0 bids
      RM 99.15 shipping
      Ending Wednesday at 10:08AM MYT2d 22h
    • George Kirby Mariners Auto Signed Baseball Beckett Witness Hologram .

      George Kirby Mariners Auto Signed Baseball Beckett Witness Hologram .

      RM 242.64
      0 bids
      RM 112.83 shipping
      Ending Wednesday at 10:28AM MYT2d 23h
    • Nice Ken Griffey Jr Signed Autographed Baseball Mariners HOF Beckett 441

      Nice Ken Griffey Jr Signed Autographed Baseball Mariners HOF Beckett 441

      RM 966.34
      RM 128.01 shipping
      or Best Offer
    • Edgar Martinez Authentic Signed White Pro Style Jersey Autographed BAS Witnessed

      Edgar Martinez Authentic Signed White Pro Style Jersey Autographed BAS Witnessed

      RM 1,169.27
      Was: RM 1,397.88
      RM 144.24 shipping
      or Best Offer
    • Ken Griffey Jr. Seattle Mariners Signed Swinging 16x20 Photo BAS Beckett

      Ken Griffey Jr. Seattle Mariners Signed Swinging 16x20 Photo BAS Beckett

      RM 1,764.96
      RM 159.95 shipping
      or Best Offer
      Only 1 left!
    • ICHIRO SUZUKI SIGNED RAWLINGS HALL OF FAME HOF BASEBALL MARINERS ROMLB AUTOGRAPH

      ICHIRO SUZUKI SIGNED RAWLINGS HALL OF FAME HOF BASEBALL MARINERS ROMLB AUTOGRAPH

      RM 1,764.96
      RM 101.49 shipping
      or Best Offer
    • ALEX RODRIGUEZ SIGNED AUTOGRAPHED 8x10 PHOTO SEATTLE MARINERS LEGEND BECKETT BAS

      ALEX RODRIGUEZ SIGNED AUTOGRAPHED 8x10 PHOTO SEATTLE MARINERS LEGEND BECKETT BAS

      RM 507.44
      RM 61.77 shipping
      or Best Offer
      SPONSORED
    • Ken Griffey Jr Autographed Hall of Fame HOF 16 Signed Baseball Beckett COA Case

      Ken Griffey Jr Autographed Hall of Fame HOF 16 Signed Baseball Beckett COA Case

      RM 1,981.21
      RM 108.24 shipping
      or Best Offer
      3 watching
      SPONSORED
    • Mitch Haniger Giants Mariners Signed Engraved Bat Beckett COA Black ~

      Mitch Haniger Giants Mariners Signed Engraved Bat Beckett COA Black ~

      RM 220.58
      0 bids
      RM 228.04 shipping
      Ending Wednesday at 10:16AM MYT2d 23h
    • Ichiro Suzuki Seattle Mariners Signed 01 Roy/MVP Insc Majestic White Jersey BAS

      Ichiro Suzuki Seattle Mariners Signed 01 Roy/MVP Insc Majestic White Jersey BAS

      RM 3,971.20
      RM 209.55 shipping
      or Best Offer
    • Mitch Haniger Giants Mariners Signed OMLB Baseball Beckett WITNESS 1st MLB HR

      Mitch Haniger Giants Mariners Signed OMLB Baseball Beckett WITNESS 1st MLB HR

      RM 198.52
      0 bids
      RM 112.17 shipping
      Ending Wednesday at 10:16AM MYT2d 23h
    • Logan Gilbert Mariners Auto Signed Baseball 2018 14th Overall Beckett COA ROOKIE

      Logan Gilbert Mariners Auto Signed Baseball 2018 14th Overall Beckett COA ROOKIE

      RM 264.71
      0 bids
      RM 113.18 shipping
      Ending Wednesday at 10:08AM MYT2d 22h
    • Ichiro Suzuki Seattle Mariners Signed Authentic Majestic White Jersey BAS

      Ichiro Suzuki Seattle Mariners Signed Authentic Majestic White Jersey BAS

      RM 3,529.95
      RM 202.93 shipping
      or Best Offer
    • Ichiro Suzuki Seattle Mariners Signed Authentic Majestic Gray Jersey BAS

      Ichiro Suzuki Seattle Mariners Signed Authentic Majestic Gray Jersey BAS

      RM 3,529.95
      RM 202.93 shipping
      or Best Offer
    • Ken Griffey Jr. & Ichiro Suzuki Dual Signed Mariners 16x20 Photo Beckett Witness

      Ken Griffey Jr. & Ichiro Suzuki Dual Signed Mariners 16x20 Photo Beckett Witness

      RM 2,647.45
      RM 532.59 shipping
      or Best Offer
    • George Kirby Mariners Auto Signed Black Baseball Beckett Witness Hologram .

      George Kirby Mariners Auto Signed Black Baseball Beckett Witness Hologram .

      RM 220.58
      0 bids
      RM 112.52 shipping
      Ending Wednesday at 10:06AM MYT2d 22h

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