Letter | Description | Signature | Date |
---|---|---|---|
|
Ricordi
>
Hermann Scherchen
No place |
LLET020898 | No date |
|
Alfredo Colombo
,
Franco Colombo
>
Hermann Scherchen
No place |
LLET020899 | No date |
|
Alfredo Colombo
,
Luigi Bai
>
Hermann Scherchen
No place |
LLET028493 | No date |