2...", added in blank portion of a Typed letter signed from H. W. Bell to Einstein, 1 November 1948. 1 page, 4to, with pencil notations in another hand. Einstein's text in German." /> EINSTEIN, Albert (1879-1955). Autograph scientific manuscript signed ("A. Einstein"), INCLUDING HIS FAMOUS FORMULA "ENERGY=MC<V>2...", added in blank portion of a Typed letter signed from H. W. Bell to Einstein, 1 November 1948. <I>1 page, 4to, with pencil notations in another hand</I>. Einstein's text in German. | Christie's