Gabrilowitsch, Ossip. (1878–1936) [Buxbaum, Friedrich. (1869–1948)] Typed Letter Signed regarding American immigration regulationsTyped letter signed from the Russian born American pianist, conductor and composer, to Austrian cellist Friedrich Buxbaum. April 16, 1927. 1 p. On letterhead of the Detroit Symphony Orchestra, of which Gabrilowitsch served as conductor from 1918 to 1936, he writes that he would be glad to engage Buxbaum in the orchestra, but that U. S. immigration laws make hiring orchestral musicians from Europe practically impossible. Full translation from the