Letter | Description | Signature | Date |
---|---|---|---|
|
Eugen Patak
>
Ricordi
Budapest, Ungheria Source: Archivio Storico Ricordi |
LLET026775 > | 14/5/1951 |
|
Alfredo Colombo
,
Eugenio Clausetti
>
Eugen Patak
Milano Source: Archivio Storico Ricordi |
LLET026776 > | 19/6/1951 |