This Autographed Auto Graded Gem Mint 10! 2016 O-Pee-Chee Glossy Rookies #R1 Rookie Card has been Personally Signed by Auston Matthews of the Toronto Maple Leafs. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.