Signatures include: Thomas Bjorn, Paul Casey, Sergio Garcia, Padraig Harrington, Miguel Angel Jimenez, Bernhard Langer, Ian Poulter, Lee Westwood. Every golf signature has been obtained at golf tournaments all around the country and witnessed by a member of the Palm Beach Autographs staff. This item was hand signed by the athletes and is accompanied by a Certificate of Authenticity from Palm Beach Autographs. A tamper-evident hologram will be affixed to the item. Signed items are guaranteed to pass any third-party authentication with 100% Money Back Guarantee.