On CD you can go back to Carnegie Hall April 4, 1954 for this Italian maestro's last concert
[DOC] [TLE] Toscanini: The April 4, 1954 Final Concert - Amazon.com [PAR] Toscanini's final Concert at Carnegie Hall, recorded in High Fidelity Stereo: .... 
Made during the radio broadcast on NBC on 4 April 1954, using a ...