Inscription
lower right in white chalk: Kathe Kollwitz 1906
Bibliography
- 1959
- Bittner, Herbert. Kaethe Kollwitz Drawings. New York, 1959: 28.
- 1972
- Nagel, Otto. The Drawings of Kathe Kollwitz. New York: Galerie St. Etienne; Crown Publishers, 1972.
lower right in white chalk: Kathe Kollwitz 1906