American
Painting with Two Balls [trial proof]
Painting with Two Balls (Grays) [trial proof]
Flowers
, 1971
, 1974
, 1975
![Painting with Two Balls [trial proof]](https://api.nga.gov/iiif/9c98bbf4-72b4-4abe-bbad-949aae2eabf5/full/843,/0/default.jpg)
![Painting with Two Balls (Grays) [trial proof]](https://api.nga.gov/iiif/7ab52c2a-0d53-4689-9fda-e495fc518367/full/843,/0/default.jpg)
![Painting with Two Balls [trial proof]](https://api.nga.gov/iiif/63558fdf-2a63-432e-a2c6-5b8b4cc1ab92/full/843,/0/default.jpg)
