Wiener Opernorchester

Profile:
This is an ambiguous name for one of two Vienna opera orchestras:

Orchester Der Wiener Staatsoper - in English, The Vienna State Opera Orchestra
Wiener Volksopernorchester - in English, The Vienna People's Opera Orchestra, or The Vienna National Opera Orchestra

The first is more likely, but it's worth checking other versions within a master release if the identity is not clear.
Variations:

Albums

Wiener Opernorchester - McCracken On Stage album art James McCracken With The Vienna Opera Orchestra* Conducted By Dietfried Bernet James McCracken With The Vienna Opera Orchestra* Conducted By Dietfried Bernet - McCracken On Stage Decca, Decca UK 1965 Sell This Version
Wiener Opernorchester - Operatic Recital album art Nancy Tatum, Vienna Opera Orchestra*, Argeo Quadri Nancy Tatum, Vienna Opera Orchestra*, Argeo Quadri - Operatic Recital Decca UK 1966 Sell This Version
Wiener Opernorchester - Verdi & Puccini Arias album art Felicia Weathers, Wiener Opernorchester, Argeo Quadri, Giuseppe Verdi, Giacomo Puccini Felicia Weathers, Wiener Opernorchester, Argeo Quadri, Giuseppe Verdi, Giacomo Puccini - Verdi & Puccini Arias (Album) Decca UK 1967 Sell This Version
417 407-2 Wiener Opernorchester - Nabucco album art Verdi*, Gobbi*, Souliotis*, Konzertvereinigung Wiener Staatsopernchor, Wiener Opernorchester, Lamberto Gardelli Verdi*, Gobbi*, Souliotis*, Konzertvereinigung Wiener Staatsopernchor, Wiener Opernorchester, Lamberto Gardelli - Nabucco(2xCD, Album + Box) Decca 417 407-2 UK & Europe 1986 Sell This Version
Wiener Opernorchester - Strauss - Festival  Vol. I  Die schönsten WIENER WALZER album art Johann Strauss Jr., Johann Strauss Sr., Carl Michalski, Wiener Opernorchester Johann Strauss Jr., Johann Strauss Sr., Carl Michalski, Wiener Opernorchester - Strauss - Festival Vol. I Die schönsten WIENER WALZER (Album, Comp) Sonatina Switzerland 1987 Sell This Version
3209CD Wiener Opernorchester - Waltzes And Polkas album art Johann Strauss Sr., Wiener Opernorchester Johann Strauss Sr., Wiener Opernorchester - Waltzes And Polkas(CD, Album) Elap Music, The Rose Collection 3209CD Sweden 1990 Sell This Version
Wiener Opernorchester - Arien Und Szenen Aus Nabucco album art Giuseppe Verdi, Elena Suliotis*, Dora Carral, Tito Gobbi, Carlo Cava, Bruno Prevedi, Anna D'Auria, Lamberto Gardelli, Wiener Staatsopernchor, Wiener Opernorchester Giuseppe Verdi, Elena Suliotis*, Dora Carral, Tito Gobbi, Carlo Cava, Bruno Prevedi, Anna D'Auria, Lamberto Gardelli, Wiener Staatsopernchor, Wiener Opernorchester - Arien Und Szenen Aus Nabucco Decca Germany, Austria, & Switzerland Unknown Sell This Version