Frank Lloyd Wright Signed Autograph 1952 Typed Letter PSA/DNA Encapsulated. Scarce 1952 Typed Letter Autographed by Legendary Builder Frank Lloyd Wright. Lloyd Writes to a Fellow Architect. Talking about a potential project together. Comes Fully Authenticated & Encapsulated by PSA/DNA for the Autograph’s Authenticity. The Certification Number is: 85924010. Please feel free to reach out with any questions!