Letter | Description | Signature | Date |
---|---|---|---|
|
Luigi Bai
,
Alfredo Colombo
>
Walter Porschmann
Milano Source: Archivio Storico Ricordi |
LLET027505 > | 15/5/1950 |
|
Walter Porschmann
>
Ricordi
Oberursel, Germania Source: Archivio Storico Ricordi |
LLET027506 > | 11/11/1950 |