The signature is guaranteed to pass any third party authentication such as JSA or PSA. A COA of my own design is available upon request. The item "Wayne Gretzky signed New York Rangers jersey autographed HOF Edmonton Oilers" is in sale since Monday, June 26, 2017. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Hockey-NHL\Jerseys".The seller is "jclaude1" and is located in Bridgeview, Illinois. This item can be shipped worldwide.