Najee Harris Autographed/Signed Pittsburgh Steelers Mini Helmet FAN 42832 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 Pittsburgh Steelers Mini Helmet that was personally autographed by Najee Harris. Includes a certificate of authenticity from Fanatics Authentication (FAN) and Denver Autographs.