1954
National Gallery of Art, 1776
National Gallery of Art, 1927
National Gallery of Art, 1825
National Gallery of Art, 1938
National Gallery of Art, 1911
National Gallery of Art, 1837
National Gallery of Art, 1961
National Gallery of Art, 1941
National Gallery of Art, 1940
National Gallery of Art, 1770
National Gallery of Art, 1929
![Dünenlandschaft, Farbangaben (Sketch with Notations) [p. 7]](https://api.nga.gov/iiif/732ff8b3-bd07-4d61-bf6c-2a597ecb776e/full/843,/0/default.jpg)
