Letter | Description | Signature | Date |
---|---|---|---|
|
Konrad Mennel
>
Ricordi
Bregenz-Lochau, Austria Source: Archivio Storico Ricordi |
LLET025939 > | 9/8/1956 |
|
Ricordi
>
Konrad Mennel
No place Source: Archivio Storico Ricordi |
LLET025940 > | 14/8/1956 |