Lotzgesell, Georg : Quartette, Vl 1 2 Va Vc
| Georg Lotzgesell an Louis Spohr in Kassel | Bern, September 1851 | 1851091544 |
| Georg Lotzgesell an Louis Spohr in Kassel | Bern, Anfang Juni 1852 | 1852060544 |
| Georg Lotzgesell an Louis Spohr in Kassel | Bern, September 1851 | 1851091544 |
| Georg Lotzgesell an Louis Spohr in Kassel | Bern, Anfang Juni 1852 | 1852060544 |