1978
National Gallery of Art, 1989
National Gallery of Art, 1974
National Gallery of Art, 1884
National Gallery of Art, 1905
National Gallery of Art, 1918
National Gallery of Art, 1937
National Gallery of Art, 1969
National Gallery of Art, 1953
National Gallery of Art, 1892
National Gallery of Art, 1966
National Gallery of Art, 1964
![Skizze für Frühe Menschen (Sketch for Early Men) [p. 9]](https://api.nga.gov/iiif/250ee06e-0a71-4462-83ed-ed7c48fa34a5/full/843,/0/default.jpg)
