Letter | Description | Signature | Date |
---|---|---|---|
|
Ricordi
>
Giancarlo Schiaffini
No place Source: Archivio Storico Ricordi |
LLET030583 > | 15/12/1986 |
|
Luigi Nono
>
Hans Peter Haller
,
Roberto Fabbriciani
,
Giancarlo Schiaffini
Milano Source: Archivio Storico Ricordi |
LLET016120 > | 21/9/1988 |