Letter | Description | Signature | Date |
---|---|---|---|
|
Willy Hess
>
Ricordi
Winterthur, Svizzera |
LLET025376 | No date |
|
Willy Hess
>
Ricordi
Winterthur, Svizzera |
LLET025377 | No date |
|
Eugenio Clausetti
,
Franco Colombo
>
Willy Hess
No place |
LLET025378 | No date |