Hoogduitsche Schouwburg <Amsterdam>
| Eduard Kunz an Louis Spohr in Kassel | Amsterdam, Freitag 28. September 1849 | 1849092844 |
| Eduard Kunz an Louis Spohr in Kassel | Amsterdam, Freitag 28. September 1849 | 1849092844 |
| Eduard Kunz an Louis Spohr in Kassel | Amsterdam, Freitag 28. September 1849 | 1849092844 |
| Eduard Kunz an Louis Spohr in Kassel | Amsterdam, Freitag 28. September 1849 | 1849092844 |