Letter | Description | Signature | Date |
---|---|---|---|
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Amilcare Ponchielli
>
Giulio Ricordi
Bologna |
LLET013322 | No date |
![]() |
Amilcare Ponchielli
>
Giulio Ricordi
Milano |
LLET013337 | No date |
![]() |
Arrigo Boito
>
Giulio Ricordi
No place |
LLET000072 | No date |