There is indeed a Rosenkavalier from circa 1950 with Erich Kleiber and the
Vienna Philharmonic. The cast includes Maria Reining (Marschallin), Sena
Jurinac (Octavian), and Hilde Gu"den (Sophie). This has been and may still
be available in Decca/London's "Historic" series.
-david gable