
JSA (James Spence Authentication)
James Spence Authentication (JSA) is a reputable service that verifies the authenticity of autographed collectibles, such as sports memorabilia and celebrity signatures. They employ expert examiners who analyze the autograph's characteristics, compare it to verified samples, and assess ink, penmanship, and signing techniques. Once verified, JSA provides a certificate of authenticity, giving buyers confidence that the signature is genuine. This process helps prevent forgeries and adds value and trust to collectible items. JSA is widely recognized in the industry for its thorough, professional authentication standards.