Arnold Palmer autographed photos are great additions to a sports room, home or office. This Arnold Palmer Autographed 11x14 US Senior Open Advertisment Sign - JSA Authentic has been authenticated by JSA and will come with a Certificate of Authenticity. Prime One Sports is your one stop shop for 100% authentic Arnold Palmer signed memorabilia. Your order will ship out within 1 buisness day. This signed photograph is a must have for a Arnold Palmer memorabilia collection. Your photo ships quickly and securely to you.