Letter | Description | Signature | Date |
---|---|---|---|
|
Amilcare Ponchielli
>
Giulio Ricordi
San Pietroburgo, Russia |
LLET013452 | No date |
|
Antonio Ghislanzoni
>
Giulio Ricordi
Caprino Bergamasco, Bergamo |
LLET008081 | No date |