Signatures include: David Duval, Jim Furyk, Tom Lehman, Justin Leonard, Davis Love III, Jeff Maggert, Phil Mickelson, Mark O'Meara, Steve Pate & Hal Sutton. 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.