Collection: Marketplace Grail Items

About This Item Hand-signed by San Francisco 49ers legend Merton Hanks Throwback style San Francisco 49ers mini helmet Authenticated by JSA with a Witnessed COA Includes the shell and faceplate as pictured

About This Item Hand-signed by MLB star Alfonso Soriano Official Major League Baseball (ROMLB) Authenticated with a JSA Certificate of Authenticity

About This Item Hand-signed by Florida Marlins star Hanley Ramirez Official Major League Baseball (ROMLB) Includes JSA (James Spence Authentication) certificate of authenticity

About This Item Hand-signed by Cy Young Award winner David Price Official Rawlings Major League Baseball (ROMLB) Authenticated by JSA (James Spence Authentication) Features Tampa Bay Rays team association

About This Item Hand-signed by New York Yankees legend Bob Turley Includes "Cy Young" inscription Official Major League Baseball (ROMLB) Authenticated by JSA (James Spence Authentication) Perfect for any Yankees fan or baseball historian

About This Item Hand-signed by Oakland Athletics legend Bert Campaneris Official Major League Baseball (ROMLB) Features three hand-written inscriptions Authenticated by JSA (James Spence Authentication)

About This Item Hand-signed by outfielder Michael Conforto Official Major League Baseball (ROMLB) Includes JSA Certificate of Authenticity

About This Item Hand-signed by Milwaukee Brewers legend Ryan Braun Official Major League Baseball (ROMLB) Includes JSA Certificate of Authenticity

About This Item Hand-signed by Super Bowl XLVIII MVP Malcolm Smith Custom Seattle Seahawks blue jersey with tackle twill lettering and numbering Authenticated by Beckett with a tamper-evident hologram and matching COA Custom-sewn jersey style designed specifically for display

About This Item Hand-signed by Florida State legend and 1993 Heisman Trophy winner Charlie Ward Includes JSA Witness Certificate of Authenticity Florida State Seminoles gold mini helmet edition Features "'93 Heisman" inscription

About This Item Hand-signed by Miami Dolphins legend Mark Duper Official Miami Dolphins throwback edition mini helmet Authenticated by JSA with a Witnessed COA Includes Certificate of Authenticity and matching serial-numbered hologram

About This Item Hand-signed by Cleveland Browns legend Eric Metcalf Features a specialty Slate edition finish Includes a JSA Witnessed Certificate of Authenticity Ideal for collectors looking for unique alternate team styles

About This Item Hand-signed by Miami Dolphins legend Mark Clayton Classic Dolphins throwback style mini helmet Authenticated by JSA with a Witnessed COA Includes helmet shell and faceplate

About This Item Hand-signed by Florida State legend Charlie Ward Inscribed with "93 Heisman" noting his 1993 Heisman Trophy win White Florida State Seminoles mini helmet style Includes JSA Witness Certificate of Authenticity

About This Item Hand-signed by MLB legend Dennis Martinez Official Rawlings Major League Baseball (ROMLB) Includes JSA Witnessed Certificate of Authenticity High-quality signature on a premium leather baseball

About This Item Hand-signed by Miami Dolphins legend Mark Duper Custom jersey featuring stitched name and numbers Size: XL Includes JSA Witnessed Certificate of Authenticity