[Mahler, Gustav. (1860–1911)] Bernstein, Leonard. (1918–1990) Typed Letter Signed about his Mahler recordingsTLS. 1 page, with envelope of the NY Philhmaronic stamped 1968. To Dirk Nabering of the Gustav Mahler Gesellschaft in Berlin. In full: "This is a marvelous moment in Mahler history. His name has become a magic one among audiences, especially among the young. And I am extremely proud that this month Columbia Records (CBS in Europe) is issuing my performances of all nine Symphonies in one beautiful album. It is a historic occasion! My greetings to you,