Concerto For Piano And Orchestra No. 3 / Concerto For Viola And Orchestra, Op. Posth.

Also released in stereo: SUA ST 50439 Flipback cover. Blue labels, silver lettering, 'big arc' logo. Probably one of the two releases, stereo or mono version, has the release date misprinted as the stereo version reports 1962 and the mono one 1964 but both versions on the back cover mention the existence and the catalogue number of the other. More likely both versions had been released the same year.