1967–1968
National Gallery of Art, 1953
National Gallery of Art, 1951
National Gallery of Art, 1938
National Gallery of Art, 1981
National Gallery of Art, 1570
National Gallery of Art, 1972
National Gallery of Art, 1759
National Gallery of Art, 1955
National Gallery of Art, 1958
National Gallery of Art, 1937
National Gallery of Art, 1990
National Gallery of Art, 1988
![Targets [trial proof]](https://api.nga.gov/iiif/ca9cab0d-65cb-42a3-9b9b-19703387195b/full/843,/0/default.jpg)
![Viola [working proof]](https://api.nga.gov/iiif/e0e613a8-23fe-44fe-a069-5cb35f09eb52/full/843,/0/default.jpg)
