Mike Singletary Autographed/Signed Chicago Bears Mini Helmet JSA 42022 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 Chicago Bears Mini Helmet that was personally autographed by Mike Singletary. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.