Letter | Description | Signature | Date |
---|---|---|---|
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Luigi Nono
>
Guido Rignano
,
Eugenio Clausetti
Milano Source: Archivio Storico Ricordi |
LLET015928 > | 30/3/1967 |
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Luigi Nono
>
Guido Rignano
No place Source: Archivio Storico Ricordi |
LLET015930 > | 29/5/1967 |