Zach Johnson Autographed Memorabilia. Check out Zach Johnson Autographed 5.5x10.5 Program - PSA/DNA. This 5.5x10.5 Program that has been personally hand signed by Zach Johnson. It has been authenticated by PSA/DNA and comes with their tamper-evident sticker and matching certificate. PSA/DNA is the leading third-party authenticator in the autograph industry. This signed publication is a great gift idea for any sports fan or memorabilia collector. Commemorate the great career of Zach Johnson with this autographed publication, or check out other souvenirs at SportsCollectibles.com for more products autographed by Zach Johnson. When it comes to Golf Memorabilia, SportsCollectibles.com offers a wide selection of Zach Johnson Autographed Magazines. Product will ship in 1-3 business days with free shipping on orders over $200. Buy with confidence as this is an authenticated Zach Johnson autograph.