Letter | Description | Signature | Date |
---|---|---|---|
|
Amilcare Ponchielli
>
Eugenio Tornaghi
No place |
LLET013448 | No date |
|
Arrigo Boito
>
Giulio Ricordi
No place |
LLET000072 | No date |
|
Filippo Filippi
>
Giulio Ricordi
No place |
LLET007168 | No date |