Singverein <Leipzig>
| Louis Spohr an Wilhelm Speyer in Offenbach | Dresden, Freitag 2. November 1821 | 1821110202 |
| Louis Spohr an Wilhelm Speyer in Offenbach | Dresden, Freitag 2. November 1821 | 1821110202 |
| Louis Spohr an Wilhelm Speyer in Offenbach | Dresden, Freitag 2. November 1821 | 1821110202 |
| Louis Spohr an Wilhelm Speyer in Offenbach | Dresden, Freitag 2. November 1821 | 1821110202 |