Käthe Kollwitz (1867–1945). Autoportrait, charcoal on brown laid Ingres paper, 1933. From the Rosenwald Collection, National Gallery of Art, Washington, D. C. Public Domain. Source: Wikimedia Commons.
Käthe Kollwitz (1867–1945). Autoportrait, charcoal on brown laid Ingres paper, 1933. From the Rosenwald Collection, National Gallery of Art, Washington, D. C. Public Domain. Source: Wikimedia Commons.