Trent Richardson autograph (auto) - this is where to find them. Included in this selection of Trent Richardson certified authentic autographed cards will be his 2012 rookie autographs from major brands including Leaf and Panini. Trent Richardson has the potential to become a great player in the NFL, and now may be a great time to invest in his autographed football cards. An example of one of the cards I see listed for you now is: 2012 Panini Prestige Rookie Trent Richardson Autograph #242 serial numbered out of 299 cards. Another great one is: TRENT RICHARDSON 2012 PANINI ELITE ROOKIE INSCRIPTIONS AUTOGRAPH. Please find more below.