Sturm & Koppe <Leipzig>
| Ferdinand Brandenburg an Louis Spohr in Kassel | Rudolstadt, Montag 3. Mai 1847 | 1847050340 |
| Ferdinand Brandenburg an Louis Spohr in Kassel | Rudolstadt, Donnerstag 19. August 1847 | 1847081940 |
| Ferdinand Brandenburg an Louis Spohr in Kassel | Rudolstadt, Montag 3. Mai 1847 | 1847050340 |
| Ferdinand Brandenburg an Louis Spohr in Kassel | Rudolstadt, Donnerstag 19. August 1847 | 1847081940 |