Curtis Martin Autographed Mini Helmets are top selling items among New York Jets signed collectibles. This item has been personally hand-signed by Curtis Martin and comes comes complete with a Certificate of Authenticity (COA) from JSA. The product will also be affixed with a hologram and sticker with a serial number to confirm authenticity. This Curtis Martin Autographed New York Jets TK Mini Helmet - JSA Authentic is backed by Prime One Sports Online's 100% Money Back Guarantee. Order ships same day.