Dave Keon Autographed Signed Toronto Maple Leafs Officially Licensed Fanatics NHL Jersey (JSA COA). You are looking at a Signed/Autographed Dave Keon NHL Jersey.This autographed Fanatics NHL jersey has been personally hand-signed by Dave Keon of the Toronto Maple Leafs. This autograph is certified by James Spence Authentication (JSA). It comes with the numbered hologram and matching Certificate of Authenticity. We do appreciate your coming by our listing. We have many more items for sale, and we're updating our store on a consistent basis. We pride ourselves on bringing you such signed/autographed items as. We will respond to you within 24 hours and do our best to help you out!