1983–1985
National Gallery of Art, 1939
National Gallery of Art, 1951
National Gallery of Art, 1590
National Gallery of Art, 1945
National Gallery of Art, 1936
National Gallery of Art, 1937
National Gallery of Art, 1525
National Gallery of Art, 1763
Gemini G.E.L., 1974
National Gallery of Art, 1545
National Gallery of Art, 1938
![York Factory II [color trial proof]](https://api.nga.gov/iiif/7af31cd9-a552-462c-864e-de436c4297e1/full/843,/0/default.jpg)
![Mercury and a Broken Obelisk [reverse]](https://api.nga.gov/iiif/a88d31b8-e063-4f26-a5d8-4f627d9cb74d/full/843,/0/default.jpg)
