Letter | Description | Signature | Date |
---|---|---|---|
|
Joseph Labitzky
>
Ricordi
Karlsbad, Germania |
LLET009388 | No date |
|
Joseph Labitzky
>
Tito I Ricordi
Karlsbad, Germania |
LLET009396 | No date |
|
Luigi Nono
>
B. Schott’s Söhne
No place |
LLET016069 | No date |
|
Luigi Nono
>
B. Schott’s Söhne
No place |
LLET016076 | No date |