TrumpeT,
Helmut Wobisch was the Principal Trumpet with the Vienna Philharmonic and was a member of the orchestra from 1939 – 1978 (this information was provided by Dr. Silvia Kargl, Historisches Archiv der Wiener Philharmoniker). The other Principal at this time was Josef Levora (1934-1974) and they “shared” a mouthpiece that eventually became a
Breslamair mouthpiece.
I’m guessing that if you look up recordings of the Vienna Philharmonic in the 1950s and 1960s you’ll be able to hear him.