1960
National Gallery of Art, 1600
National Gallery of Art, 1936
National Gallery of Art, 1759
National Gallery of Art, 1894
National Gallery of Art, 1959
National Gallery of Art, 1884
National Gallery of Art, 1519
National Gallery of Art, 1935
National Gallery of Art, 1768
National Gallery of Art, 1937
Rosenwald, Lessing Julius, 1896
National Gallery of Art, 1938
![Zwei Köpfe, Zuschauer (Two Spectators) [p. 20]](https://api.nga.gov/iiif/1fe7b055-83e6-4e69-b6b9-40cc89b8acc5/full/843,/0/default.jpg)
