[ Autograph ] Albert Einstein 1879-1955 American physicist whose Theory of Relativity and studies of mass and energy relationships revolutionized the field of physics. A.L.S. 1p. oblong 8vo., Oxford, May 21, 1932, in German. A year before emmigrating to the United States, Einstein thanks a man for his assistance with the English language. In full: "Dear Mr. Harvey! I feel the need to thank you kindly for all the help that you always have bestowed on me in the kindest way. Considering my imperfect knowledge of the English language, it was often no easy matter for you to come up with the right expression. Your, A. Einstein' Double-matted and attractively framed with an 8in x 10in photograph. two small spots and one fold in text, otherwise very good.