This Autographed Teal Pro Style Jersey has been Personally Signed by Dan Marino of the Miami Dolphins. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA Witness. This is a JSA Witnessed Protection Program item which means a JSA representative was present when this item was being signed. This is a stock item in which we have several available. The one you will receive will be of similar quality to the one pictured. This item can be verified through JSA Witness. Some of the jerseys do not have the matching JSA COA, these will come with an additional authentication from Beckett Authentication Services, which will have the hologram on the item and the matching numbered COA. This is a X-Large sized, non-branded, custom-stitched Jersey.