Joe Montana Autographed San Francisco 49ers speed Mini Helmet JSA 40326 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 San Francisco 49ers speed mini helmet that was personally autographed by Joe Montana. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.