PSA/DNA autograph experts will be available to authenticate your previously signed autographs up to 3:30 pm. 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. Note: Items submitted for grading and/or encapsulation must be mailed directly to PSA/DNA, please visit www.psacard.com/Submissions/ for details on how to submit.