1988
National Gallery of Art, 1977
National Gallery of Art, 1915
National Gallery of Art, 1967
National Gallery of Art, 1899
Patrons' Permanent Fund, 1976
National Gallery of Art, 1940
National Gallery of Art, 1797
National Gallery of Art, 1975
National Gallery of Art, 1555
National Gallery of Art, 1490
National Gallery of Art, 1962
![Untitled [trial proof of 2nd state]](https://api.nga.gov/iiif/bdd70c65-1950-4611-82b3-85221118170c/full/843,/0/default.jpg)
![Numbers [trial proof]](https://api.nga.gov/iiif/d5fd47a6-4fb9-4098-a9ac-e41feca2a01a/full/843,/0/default.jpg)
![Light Bulb [working proof]](https://api.nga.gov/iiif/b677c783-899b-4518-adce-4877b24b09b2/full/843,/0/default.jpg)
