Letter | Description | Signature | Date |
---|---|---|---|
|
Ricordi
>
Ildebrando Pizzetti
Milano |
LLET017359 | No date |
|
Ricordi
>
Gian Francesco Malipiero
Milano |
LLET017146 | No date |
|
Luciano Chailly
>
Ricordi
Milano |
LLET022603 | No date |
|
Luigi Nono
>
Ricordi
Milano |
LLET016093 | No date |