Letter | Description | Signature | Date |
---|---|---|---|
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Joseph Schürmann
>
Ricordi
Firenze |
LLET014775 | No date |
![]() |
Edoardo Mascheroni
>
Ricordi
Garlasco, Pavia |
LLET010893 | No date |
![]() |
Alfred Brüggemann
>
Ricordi
Coblenza, Germania |
LLET003199 | No date |