Letter | Description | Signature | Date |
---|---|---|---|
Ricordi
>
Renzo Valcarenghi
Milano |
CLET001839 | No date | |
|
Alfred Brüggemann
>
Ricordi
Coblenza, Germania |
LLET003199 | No date |
|
Gigliola Frazzoni
>
Ricordi
Bologna |
LLET016188 | No date |