The authenticity can be verified on JSA website. This Autographed Full Size Rep Helmet with the inscription of "I'm a big deal in the resistance! Finn, FN2187" has been Personally Signed by John Boyega of Star Wars The Force Awakens. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA. The authenticity can be verified on JSA website.