We takes authenticity very seriously. We understand how important it is for you to know that the item you are purchasing is 100% authentic. That's why we guarantee the authenticity of every item we sell and will always attempt to provide a 3rd Party Authenticated (JSA, PSA, Beckett aka BAS) certificate of authenticity with every item. The signed items we sell come exclusively from paid athlete appearances and signings in which we have participated, and from only the top, most reputable suppliers in the business. If it’s not 3rd party authenticated we only provide signed items from the most reputable names in the business, including Steiner Sports, Schwartz Sports, Mounted Memories, Tri-Star Productions, and UDA (Upper Deck Authenticated). Several of our autographs also have our own personal certificate. The 757 Sports Collectibles COA is the gold standard for certificates of authenticity. Our hologram which is affixed on the item, has an alphanumeric code that can be looked up on our website, and all the information regarding the autograph is right there for you to see. When it was signed, where, and we usually even have a picture of the signing. We stand behind our 200% money back guarantee if any item you purchase from us is deemed “not authentic” by JSA, PSA, or Beckett.