Autograph Postcard Signed; to Otto Stern, July 25, 1953.
Hamburg. -. Written on one side of a picture postcard, approx. 4 X 6 in., with a color photo of tulip gardens on the other side, stamp cancelled with a postmark from the Internationale Tagung Wissenschaft und Freiheit, from which the scientists wrote to their colleague. A remarkable postcard, sent..... More