Spohr, Louis : Potpourris, Vl Kl, op. 50
| Louis Spohr an Carl Friedrich Peters in Leipzig | Gandersheim, Sonnabend 2. September 1820 | 1820090220 |
| Louis Spohr an Carl Friedrich Peters in Leipzig | Gandersheim, Sonntag 17. September 1820 | 1820091720 |
| Louis Spohr an Wilhelm Speyer in Frankfurt am Main | Gandersheim, Dienstag 26. September 1820 | 1820092602 |
| Louis Spohr an Carl Friedrich Peters in Leipzig | Gandersheim, Freitag 27. Oktober 1820 | 1820102720 |
| Louis Spohr an Carl Friedrich Peters in Leipzig | Straßburg, Donnerstag 8. Februar 1821 | 1821020820 |
| C. Türpen an Louis Spohr in Kassel | Erfurt, Sonntag 24. November 1833 | 1833112447 |
| Julius Schuberth an Louis Spohr in Kassel | Hamburg, Sonnabend 11. April 1840 | 1840041155 |