1997
National Gallery of Art, 1470
National Gallery of Art, 1939
National Gallery of Art, 1570
National Gallery of Art, 1834
National Gallery of Art, 1937
National Gallery of Art, 1991
National Gallery of Art, 1837
National Gallery of Art, 1951
National Gallery of Art, 1956
![Study VI, New York Harbor [recto, #5, green]](https://api.nga.gov/iiif/dbfbe434-496b-44b8-b31f-9533f7bc07c9/full/843,/0/default.jpg)
![Touched Red [working proof 2]](https://api.nga.gov/iiif/62b994eb-307e-45b1-844d-04bd5d90f8e7/full/843,/0/default.jpg)
