An old bard sitting in a forest singing to a harp

Probably Brothers Heilbron Berlin [ed.] Graphics - ... roße Kollektion von Adolph Menzel und Theodor Hosemann; auction October 31 to November 1, 1912 (catalog no. 13) - Berlin, 1912, page 43 / Purchased after 1912, seller not known for Städtische Bildersammlung / 1945 loss during the war.