Collection: The Marketplace

About This Item Hand-signed by Denver Broncos legend Karl Mecklenburg Riddell Lunar edition Speed mini helmet Authenticated by Beckett Witnessed (BAS) Includes matching certificate of authenticity and serial-numbered hologram

About This Item Hand-signed by Hall of Fame cornerback Darrell Green Custom white jersey with stitched name and numbers Authenticated by Beckett Witnessed Protection Program Professional style jersey with no team logos or brand tags

About This Item Hand-signed by San Francisco 49ers star quarterback Jeff Garcia Riddell Full Size Eclipse Speed Replica Helmet Authenticated by Beckett Witnessed (BAS) with matching COA Signature featured in gold ink

About This Item Hand-signed by Buffalo Bills safety Damar Hamlin Official Riddell Flash Speed Mini Helmet Beckett Witnessed Authentication includes a numbered hologram and QR code Stock photo: Item received will be of equal quality and virtually identical

About This Item Hand-signed by Dallas Cowboys legend and Hall of Fame quarterback Roger Staubach Riddell full size Speed replica helmet Authenticated by Beckett Witnessed with numbered hologram and QR code for verification Features official Dallas Cowboys team colors and decals

About This Item Hand-signed by MLB legend Dwight "Doc" Gooden Inscribed with "1992 Silver Slugger" Rawlings Adirondack Pro Big Stick professional model bat with blonde finish Authenticated by JSA Witnessed Protection Program Includes JSA serial-numbered hologram and matching Certificate of Authenticity

About This Item Hand-signed by Cowboys legend and Hall of Famer Roger Staubach Official Riddell Full Size Rave Speed Replica Helmet Authenticated by Beckett Witnessed (BAS) Includes a numbered hologram and QR code for verification

About This Item Hand-signed by Dallas Cowboys legend Roger Staubach Official Wilson "The Duke" NFL Game Ball Beckett Witnessed Authentication includes a numbered hologram and QR code Signature verified through Beckett's witness program

About This Item Hand-signed by Dallas Cowboys legend and Hall of Famer Roger Staubach Official Wilson "The Duke" NFL Football Beckett Witnessed Authentication includes a numbered hologram and QR code for verification Authenticity verified through a public or private signing appearance

About This Item Hand-signed by Hall of Famer Warren Sapp Inscribed with "HOF" (Hall of Fame) Official Riddell Speed Mini Helmet Features the 1997-2013 era Tampa Bay Buccaneers logo Authenticated by Beckett Witnessed with a numbered QR hologram

About This Item Hand-signed by Hall of Fame quarterback Kurt Warner Inscribed with "HOF" Custom red pro-style jersey featuring stitched names and numbers Authenticated by Beckett Witnessed with a numbered hologram and QR code for verification Jersey size: XL

About This Item Hand-signed by former Georgia Bulldogs star Nick Chubb Riddell Full Size Flash Speed Replica Helmet Authenticated by Beckett Witnessed Authentication Features a Beckett numbered hologram and QR code for verification

About This Item Hand-signed by Dallas Cowboys legend George Teague Inscribed "Defender of the Star" Custom blue pro-style jersey with stitched name and numbers Includes Prova authentication hologram Size: XL

About This Item Hand-signed by star running back Ezekiel Elliott Official Wilson NFL "The Duke" game football Signature featured in bold silver ink Beckett Witnessed Authentication includes a numbered hologram and QR code for verification

About This Item Hand-signed by Dallas Cowboys legendary tight end Jason Witten Riddell Full Size Speed Authentic Helmet Unique Camo edition styling Beckett Witnessed Authentication with serial-numbered hologram

About This Item Hand-signed by Glen Rice Includes "89 National Champs" inscription Authenticated by Beckett (BAS) White custom jersey (Size XL) with no logos or emblems