1955–1956
National Gallery of Art, 1795
National Gallery of Art, 1941
National Gallery of Art, 1914
National Gallery of Art, 1755
Frank, Robert, 1962
National Gallery of Art, 1955
National Gallery of Art, 1937
National Gallery of Art, 1762
National Gallery of Art, 1936
National Gallery of Art, 1928
National Gallery of Art, 1526
![Zwei Skizzen und Notizen (Two Sketches with Notations) [p. 21]](https://api.nga.gov/iiif/245d44d9-81f5-4bb9-b22a-41711b0a6f47/full/843,/0/default.jpg)
