This 2013 Upper Deck Young Guns Rookie Card #204 has been personally hand-signed by Islanders Star Brock Nelson. This has been thoroughly examined and deemed 100% Authentic by a representative of Professional Sports Authenticator (PSA/DNA) and then Encapsulated in a Permanent Slabbing enclosure for easy display and safe keeping. Each Slab has an individual number which can be reviewed online to ensure authenticity. This process ensures that the product purchased is authentic and eliminates any possibility of duplication or fraud