HEIFETZ, Jascha (1901-1987). Autograph letter signed ("Jascha"), to Theodore Steinway. Beverly Hills, 13 March 1955. 1 page, 4to, on 1520 Gilcrest Drive, Beverly Hills, California stationery, staple hole upper left corner. Heifetz inquires about an envelope he requested for his collection "the one cancelled by Post Office of 'Steinway - Long Island'," which would complete his collection of Steinway envelopes.