1973
Patrons' Permanent Fund, 1989
Patrons' Permanent Fund, 1969
Patrons' Permanent Fund, 1997
Jasper Johns, 1976
Patrons' Permanent Fund, 1996
Pappajohn, John, Mr. and Mrs., 1973
Patrons' Permanent Fund, 1975
Patrons' Permanent Fund, 1976
Glenstone, 1976
Pappajohn, John, Mr. and Mrs., 1976
Sant, Roger, Mr. and Mrs., 1976
Glenstone, 1977
![Target [trial proof]](https://api.nga.gov/iiif/d875e7ba-e041-44a0-84d6-081e7d24739e/full/843,/0/default.jpg)
![The Seasons [trial proof]](https://api.nga.gov/iiif/0d6a3b92-84be-4bba-83c5-ca5d6d3d7422/full/843,/0/default.jpg)
![Figure 3 [color trial proof]](https://api.nga.gov/iiif/749a442c-2589-4cf8-8b0b-6a59e6356a02/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/f5775891-2011-4401-be96-7551ce4639f0/full/843,/0/default.jpg)
![Figure 4 [trial proof 2]](https://api.nga.gov/iiif/f7e8581e-cbea-48a6-abcc-9f65f417bbbd/full/843,/0/default.jpg)
![Face with Watch [trial proof]](https://api.nga.gov/iiif/cd7ce166-2fa6-4c34-b4ad-5b2c599d88b8/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 20]](https://api.nga.gov/iiif/9bc1ca02-7ebf-463d-9bf3-257d49b4711b/full/843,/0/default.jpg)
![0 [trial proof]](https://api.nga.gov/iiif/ae0f9af4-03b9-48b2-9de6-e15374c146a5/full/843,/0/default.jpg)
![HandFootSockFloor [trial proof 10]](https://api.nga.gov/iiif/60095da8-1bc3-4da9-9fa8-f545e4feed79/full/843,/0/default.jpg)
![Hatching and Flagstones [trial proof 4]](https://api.nga.gov/iiif/c4a2e29b-c6dc-469a-b1da-bd74917bbd8e/full/843,/0/default.jpg)
![Rejected Plate [trial proof]](https://api.nga.gov/iiif/f51a06ae-031b-4444-a7e0-40b69a3bbf40/full/843,/0/default.jpg)
![Untitled I [working proof]](https://api.nga.gov/iiif/ac8c7668-f3aa-493d-8ac0-b2d6ef444182/full/843,/0/default.jpg)
![0 through 9 [trial proof]](https://api.nga.gov/iiif/09d2ab0e-a625-4927-b240-63dac36f49ec/full/843,/0/default.jpg)