Salomon, Johann Peter
| Ferdinand Ries an Louis Spohr in Rom | London, Dienstag 10. Dezember 1816 | 1816121043 |
| Ferdinand Ries an Louis Spohr in Braunschweig | London, Dienstag 7. September 1819 | 1819090743 |
| Ferdinand Ries an Louis Spohr in Rom | London, Dienstag 10. Dezember 1816 | 1816121043 |
| Ferdinand Ries an Louis Spohr in Braunschweig | London, Dienstag 7. September 1819 | 1819090743 |