The Certificate of Authenticity is from WGA. If you have any questions or would like additional pictures please ask.The item "Wayne Gretzky Autographed Mitchell & Ness Oilers Away Jersey WGA" is in sale since Thursday, April 8, 2021. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Hockey-NHL\Jerseys". The seller is "brian822" and is located in Trenton, New Jersey. This item can be shipped to United States.