Gamps Sports offers only Authentic In-Person Autographs that comes with a lifetime Certificate of Authenticity(COA) with every single autograph item we sell or 100% money back guarantee. As a collector, you want to be sure you are buying only authentic memorabilia.

We offer autographed memorabilia from only the best leading suppliers in the sports memorabilia industry. All autographed items come with a Certificate Of Authenticity (COA) from these suppliers that include a hologram. You’ll notice that we may stock the same item by more than one vendor. It is your choice on which vendor you want your product authenticity by. All are reputable in the memorabilia business and guarantee items 100% 

Below are companies that fully authenticate our items: 

The companies that authenticate these items include Professional Sports Authenticator (PSA/DNA), James Spence Authentication (JSA), Steiner Sports, Upper Deck, Schwartz Sports, Fanatics Authentic, LOJO Sports, MLB Authentic, Leaf, and Tri-Star Productions.

Occasionally we will have additional authenticators not listed to the industry leaders, like Total Sports Enterprises, or Crave Sports Company. In the circumstances their applicable holograms and Certificates will be provided.