Original Columbia 6 eye
Bruno Walter's Mozart Requiem Mass in D minor (his final compositiion, even though there is much fact that stipulates it was finished by Sussmayr after Mozarts death at the bequest of his wife who didn't want to lose the commission paid by Count Franz Walsegg zu Stuppach.
And if you think I just happen to know all this info and can spell these god be damned names than you haven't read the back cover as thoroughly as I have.