Newport Beach, California (April 10, 2018) – Professional Sports Authenticator (PSA) is happy to announce that it will have a team of PSA/DNA autograph experts in Houston from Friday, April 13 through Sunday, April 15, attending the GT Sports Marketing Show at the Bayou City Event Center, which is located at 9401 Knight Road. The team will be examining and authenticating previously signed memorabilia as well as items signed on-site and is offering a special $8 autograph authentication fee for any show signers as well as for any Houston Astros or Texas Rangers single-signed items. PSA/DNA autograph authentication will be processed on-site and conclude approximately two hours prior to the show’s closing each day.

“Houston is a great sports city so we’re happy to be a part of the event and to provide a show special for attendees,” said PSA Vice President Steve Sloan.

Authentication fees normally start at $20. Turnaround varies with demand; two hour guaranteed service is available for an additional fee. Letters of Authenticity will be issued by mail within two weeks after the completion of the show. Scheduled signers include 2017 Houston Astros World Series Champion stars Jose Altuve, George Springer, Carlos Correa and Brian McCann; Houston Texans starting QB Deshaun Watson and wide receiver DeAndre Hopkins; and NFL Hall of Famers Terry Bradshaw, Troy Aikman, Emmitt Smith, Warren Moon and LaDainian Tomlinson, among others.

PSA is the world’s largest trading card, autograph and memorabilia authentication and grading service. Since 1991, PSA experts have examined and certified over 30 million collectibles with a combined value of over $1 billion. Find more information at