1974
Cohen, Eileen and Michael, 1941
Glenstone, 1973
Zwirner & Wirth, 1969
Cohen, Eileen and Michael, 1938
Glenstone, 1976
Cohen, Eileen and Michael, 1942
Zwirner & Wirth, 1947
Cohen, Eileen and Michael, 1943
Cohen, Eileen and Michael, 1953
Cohen, Eileen and Michael, 1967
Glenstone, 1975
Glenstone, 1977
![Four Panels from Untitled 1972 [C panel, trial proof 2]](https://api.nga.gov/iiif/5f0832b0-9e72-4685-924a-f450f72c585f/full/843,/0/default.jpg)
![Hatching and Flagstones [trial proof 2]](https://api.nga.gov/iiif/e8cc1ee1-4316-42f6-9653-30eda965dbc2/full/843,/0/default.jpg)
![Ale Cans [trial proof A]](https://api.nga.gov/iiif/29cf464a-4b21-46fc-a6ab-d08362bfb8b4/full/843,/0/default.jpg)
![Savarin and Savarin E.M. [trial proof]](https://api.nga.gov/iiif/732c56f2-038c-4141-90e9-daf6d22d6acd/full/843,/0/default.jpg)