Perthes & Besser <Hamburg>
| Louis Spohr an Edward Taylor in London | Kassel, Donnerstag 19. August 1841 | 1841081904 |
| Louis Spohr an Edward Taylor in London | Kassel, Sonntag 12. Dezember 1841 | 1841121204 |
| Louis Spohr an Edward Taylor in London | Kassel, Donnerstag 19. August 1841 | 1841081904 |
| Louis Spohr an Edward Taylor in London | Kassel, Sonntag 12. Dezember 1841 | 1841121204 |