Johnny Manziel Signed Cleveland Browns 1st NFL Game Ticket Slab Beckett 35375 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a 09/14/2014 ticket stub that was personally autographed by Johnny Manziel with "NFL Debut" inscription. This was slabbed by Beckett Authentication Services (BAS) includes a certificate of authenticity from Denver Autographs.