Versuch über die Musikalische Intervallen, in Ansehung ihrer wahren Anzahl, ihres eigentlichen Sitzes und natürlichen Vorzugs in der Composition

There is no entry for the object in the Institute's account books. The inventory number on the object refers to an acquisition in the accounting year 1941/42; the concrete circumstances of the acquisition have not yet been clarified. There is presumably a connection with the assignments of the then director of the Institute, Karl Gustav Fellerer, within the framework of the Special Music Staff in the occupied territories.