Nick Chubb Signed Cleveland Browns Speedflex Slate Helmet Beckett 44000 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a Cleveland Browns Full Size Authentic Speedflex Slate Helmet that was personally autographed by Nick Chubb. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.