This piece features authenticated autographs of New York Yankees owner George Steinbrenner and former manager Billy Martin. It is accompanied by a Certificate of Authenticity from Palm Beach Autographs and PSADNA. A tamper-evident hologram will be affixed to the item. It has been professionally framed in a rich cherry wood with pinstripe double matting along with 16×20 photograph and patch. Signed items are guaranteed to pass any third-party authentication with 100% Money Back Guarantee. Each signature is witnessed by a member of our staff or comes out of a private signing.