FREUD, Sigmund (1856-1939). Autograph Testimonial [Zeugniss] signed for Alfred Adler, Vienna, September 1905, 'At the request of Dr. Adler, I am writing to add the following to my testimonial of last summer. I came to know him as consultant to my patients suffering from nervous diseases and was sufficiently impressed to draw him into the inner circle of disciples who would meet once a week to discuss details of my work and views. During the three or four years of these meetings he had ample opportunity to make himself familiar with my methods for treating patients with nervous problems', one page, folio.