Both the use of the base as well as the signature are authenticated via the MLB Hologram (LH050209) affixed to the bottom of the base. This base also comes with the mounting hardware as pictured. Currently, no David Wright game used or issued gear is being released by the Mets.The item "New York Mets David Wright Game Used Signed Shea Stadium Base vs Yankees" is in sale since Sunday, October 28, 2018. This item is in the category "Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Baseball-MLB\Other MLB Game Used Mem". The seller is "typical34" and is located in Long Island City, New York. This item can be shipped to United States.