Letter | Description | Signature | Date |
---|---|---|---|
|
Alma Mahler Welfer
>
Ricordi
New York, Stati Uniti |
LLET025630 | No date |
|
Ricordi
>
Alma Mahler Welfer
No place |
LLET025631 | No date |
|
Alma Mahler Welfer
>
Ricordi
New York, Stati Uniti |
LLET025632 | No date |
|
Luigi Bai
,
Guido Valcarenghi
>
Alma Mahler Welfer
No place |
LLET025633 | No date |