1997
National Gallery of Art, 1884
National Gallery of Art, 1990
National Gallery of Art, 1846
National Gallery of Art, 1966
National Gallery of Art, 1940
National Gallery of Art, 1987
National Gallery of Art, 1885
National Gallery of Art, 1586
National Gallery of Art, 1945
National Gallery of Art, 1937
National Gallery of Art, 1633
National Gallery of Art, 1936
![Study VI, New York Harbor [verso, #30, green and blue]](https://api.nga.gov/iiif/023da2fb-37e3-438d-a1e6-2f3cb010fc8c/full/843,/0/default.jpg)
![Detailstudie eines Violoncello (Study of a Violin) [p. 3]](https://api.nga.gov/iiif/c0c1e603-fbaf-4234-aab1-32ebd27b0b9a/full/843,/0/default.jpg)
