1941–2007
Michael Cohen, 1971
Zwirner & Wirth, 1942
Glenstone, 1941
Michael Cohen, 1942
Glenstone, 1979
Glenstone, 1973
Zwirner & Wirth, 1929
Glenstone, 1976
Zwirner & Wirth, 1940
Zwirner & Wirth, 1975
![Cicada [working proof]](https://api.nga.gov/iiif/a05392ac-ccf2-4ac7-81d0-265f7120e269/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [C panel, trial proof 7]](https://api.nga.gov/iiif/4f390743-dd11-4ed0-b6de-2f7385c35e44/full/843,/0/default.jpg)
![Flagstones (a) [trial proof 5]](https://api.nga.gov/iiif/ea997b73-de3d-47a3-ba41-00e82c6c95fd/full/843,/0/default.jpg)
![Words [trial proof 7]](https://api.nga.gov/iiif/b518e848-3c27-4c5c-a01d-573cd836c268/full/843,/0/default.jpg)
![Knee [trial proof]](https://api.nga.gov/iiif/fdb17cd2-18fd-4429-a4ac-a12debaa49af/full/843,/0/default.jpg)
