[ Autographs ] ALBERT EINSTEIN (1879 - 1955) American physicist whoseTheory of Relativity and studies of mass and energy relationships revolutionized the field of physics. A most relevant, fine content typed D.S. "A. Einstein", 1p. 4to., Berlin, Dec. 18, 1929, in German to the "Organization for the Adoption of an International Language forClarification and Increased Understanding for Freedom and Unity Among People". In the text of the document, Einstein declares his support for the organization's goals which closely resemble the intended goalsof the "international" language Esperanto. Einstein was of course a lifelong supporter of causes seeking to bring about harmony among the races, and does so here, just shortly before his immigration to England and ultimately the United States. An important document, in fine condition.E2,000-3,000