Joe Flacco Autographed 2008 SP #177 (Grade 10) Beckett Slabbed 39906 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 Slab Ten Trading Card that was personally autographed by Joe Flacco. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.