Foremost Autograph Authentication company in the world. JSA has the universal respect and approval of auctioneers, dealers, and collectors worldwide with their accurate authentication experience. James Spence Authentication, LLC was founded in May 2005 by world renowned autograph authenticator, James Spence, Jr. For over 30 years, Spence has built a reputation second to none in the autograph industry. Employed by every major auction house in the country, JSA has accumulated a massive exemplar database totaling nearly 500,000 files. This extensive exemplar library is imperative for JSA autograph authenticators to utilize when accurately assessing the thousands of autographs submitted daily. JSA now operates it's authentication services out of two convenient locations: Fort Lauderdale, FL & Parsippany, NJ.