Lot 282
Freud, Sigmund (1856-1939) Austrian psychoanalyst who founded psychoanalysis (1895-1900); first to develop the concept of the subconscious mind. Autograph note signed ("Freud") on an Austrian postcard, Vienna, 4 x 5¾", Nov. 30, 1936. With holograph address to Prof. Dr. Ludwig Hopf, Aachen, Germany. "Devoted thanks / But will I understand it? Yours truly Freud."
Hopf was a German theoretical physicist who made contributions to mathematics, special relativity, hydrodynamics, and aerodynamics. He worked as an assistant to Einstein (1909-11) and collaborated on two papers with him. He eventually became a professor at the Aachen Technische Hochschule in hydrodynamics and aerodynamics and during World War I and contributed to the design of military aircraft. He also made a contribution to the Handbuch der Physik and co-authored a book on aerodynamics. In 1934, he lost his position at Aachen because he was Jewish. He then moved to Dublin, Ireland and became a professor of mathematics at Trinity College.
Estimated Value $1,000 - 1,500.
The Arden Family Holdings of Beverly Hills.
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| Realized $1,980 |
