Correspondence with Stuart Luman Seaton Correspondence between Stuart L Seaton and Penrose regarding Seaton's request for 200 copies of the Pattern Perception Test, with norms and scoring sheets, and articles by Penrose relating to the test. Seaton agrees to send results of his investigations using the test, and also requests permission to reprint the test in the United States with some amendment to the wording. Oct 1955 - Jan 1956