1942–2007
Michael Cohen, 1971
Dan Graham, 1942
Glenstone, 1973
Glenstone, 1976
Glenstone, 1975
Glenstone, 1981
![Four Panels from Untitled 1972 [D panel, working proof 17]](https://api.nga.gov/iiif/8349873a-d39e-497b-a444-8b7789424c82/full/843,/0/default.jpg)
![Flagstones and Flagstones [trial proof 3]](https://api.nga.gov/iiif/7d876ef1-efc3-4f5d-9c8b-6549ca7fb061/full/843,/0/default.jpg)
![2 [trial proof]](https://api.nga.gov/iiif/79b3040f-0b89-492a-9413-d18aef32589d/full/843,/0/default.jpg)
![Untitled [working proof]](https://api.nga.gov/iiif/decdcc07-9d9b-4e2f-bf61-02656155e78c/full/843,/0/default.jpg)
![Corpse and Mirror [trial proof]](https://api.nga.gov/iiif/86e50930-f10a-4ff2-9e4f-03f0e6a6b665/full/843,/0/default.jpg)
![7 [proof of 1st state]](https://api.nga.gov/iiif/51fc00c5-d38f-4af2-b480-7845aa4e644c/full/843,/0/default.jpg)
![Cicada II [trial proof]](https://api.nga.gov/iiif/3ad9464d-3c72-4dd9-8ebb-4c8feae8ea8d/full/843,/0/default.jpg)
![Feet (b) [trial proof 6]](https://api.nga.gov/iiif/a388b28d-10c9-4ead-a2fd-445b253f7c56/full/843,/0/default.jpg)