Friesner, R.

Louis Spohr an Adolph Hesse in Breslau Kassel, Donnerstag 6. September 1838 1838090601
Louis Spohr an Adolph Hesse in Breslau Kassel, Montag 15. April 1839 1839041501
Louis Spohr an Adolph Hesse in Breslau Kassel, Freitag 6. August 1841 1841080601