Letter | Description | Signature | Date |
---|---|---|---|
|
Emanuele Muzio
>
Ricordi
Torino |
LLET011737 | No date |
|
Amilcare Ponchielli
>
Giulio Ricordi
San Pietroburgo, Russia |
LLET013451 | No date |
|
Leopoldo Mugnone
>
Carlo Clausetti
Firenze |
LLET012056 | No date |