Letter | Description | Signature | Date |
---|---|---|---|
|
Alfredo Colombo
,
Franco Colombo
>
Hermann Scherchen
No place Source: Archivio Storico Ricordi |
LLET020899 > | 2/12/1948 |
|
Alfredo Colombo
,
Luigi Bai
>
Hermann Scherchen
No place Source: Archivio Storico Ricordi |
LLET028493 > | 10/10/1950 |