Letter | Description | Signature | Date |
---|---|---|---|
|
Ricordi
No place |
LLET025285 | No date |
|
Ricordi
>
Luciano Chailly
No place |
LLET022624 | No date |
|
Guido Guerrini
>
Ricordi
Parma |
LLET008957 | No date |