The Topps 2015 Signature Class Mike Green Rookie Autograph trading card features the signature of Mike Green, a player from the Baltimore Ravens in the NFL. This original card is part of the Topps Signature Class set and is made of card stock. It is a valuable addition to any football card collection, especially for fans of the Baltimore Ravens or Mike Green. The autograph is authenticated by Topps, adding to the authenticity and value of this sought-after sports trading card.