1924
National Gallery of Art, 1959
National Gallery of Art, 1938
National Gallery of Art, 1538
National Gallery of Art, 1897
National Gallery of Art, 1884
National Gallery of Art, 1830
National Gallery of Art, 1873
National Gallery of Art, 1954
National Gallery of Art, 1836
National Gallery of Art, 1936
National Gallery of Art, 1571
![Skizze für Frühe Menschen, Notizen (Sketch for Early Men with Notation) [p. 11]](https://api.nga.gov/iiif/60d74a8b-4be3-4bbb-a825-631e46e1574b/full/843,/0/default.jpg)
![Gehender Mann (Man Walking) [p. 5]](https://api.nga.gov/iiif/b79f5804-aea4-45fe-9394-be076c5acf73/full/843,/0/default.jpg)
