Worldcat provides a date of 1981 for the Rubini.
On Wed, Sep 9, 2020 at 1:34 PM Barbara Gentili <[log in to unmask]>
> Dear All,
> I am writing to the list in the hope of finding out the dates of
> publication of the following re-issues of 78s RPM made by the Italian
> soprano Eugenia Burzio:
> 1) Amilcare Ponchielli, La Gioconda, 'Suicidio' - Record label IRCC, 3136A
> (9194), DATE?; original 78 was a Pathé 86424, recorded between 1914–1916.
> 2) Francesco Cilea, Adriana Lecouvreur, ‘Io son l’umile ancella' - Record
> label Rubini LP GV974, DATE?; original 78 was Columbia Cat. No. D17529 (or
> perhaps D6001), recorded between 1913—1914.
> Many thanks for your help and all best wishes,