Letter | Description | Signature | Date |
---|---|---|---|
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Tito II Ricordi
>
Ricordi
New York, Stati Uniti |
LLET014262 | No date |
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Alfred Brüggemann
>
Ricordi
Aquisgrana, Germania |
LLET003125 | No date |
![]() |
Alberto Gasco
>
Ricordi
Roma |
LLET007831 | No date |
![]() |
Gigliola Frazzoni
>
Ricordi
Bologna |
LLET016188 | No date |