Letter | Description | Signature | Date |
---|---|---|---|
|
Alma Mahler Welfer
>
Ricordi
New York, Stati Uniti |
LLET025632 | No date |
|
Francis Poulenc
>
Ricordi
New York, Stati Uniti |
LLET013787 | No date |
|
Renato Bellini
>
Ricordi
New York, Stati Uniti |
LLET021689 | No date |