Comes with their unique sticker # fixed to the item and verified on their website. Also, comes with their certificate of authenticity with same matching #.We are more than willing to help. The item "Danny Amendola Autographed New England Patriots Signed Mini Helmet PSA DNA COA" is in sale since Friday, February 2, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Football-NFL\Helmets". The seller is "bepowers33" and is located in Lee's Summit, Missouri. This item can be shipped worldwide.