1977–1980
Patrons' Permanent Fund, 1996
Jasper Johns, 1976
Gemini G.E.L., 1981
Jasper Johns, 1960
Patrons' Permanent Fund, 1964
Gemini G.E.L., 1992
Jasper Johns, 1967
Patrons' Permanent Fund, 1980
Jasper Johns, 1989
Gemini G.E.L., 1967
Pappajohn, John, Mr. and Mrs., 1973
![Untitled [working proof]](https://api.nga.gov/iiif/ee615546-ee37-4857-a78e-68edc3dc9b35/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/a4a73aa8-29b7-4578-9086-73c55aed7b4f/full/843,/0/default.jpg)
![Untitled [trial proof of 2nd state]](https://api.nga.gov/iiif/6cd401cd-e99a-4ce3-b8b2-5b398b651196/full/843,/0/default.jpg)
![[title not known]](https://media.tate.org.uk/art/images/work/P/P78/P78070_10.jpg)
![The Seasons (Summer) [state proof of 15th state]](https://api.nga.gov/iiif/cbf86e43-1854-412d-87d3-7f7bcc7d4157/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [D panel, trial proof 8]](https://api.nga.gov/iiif/00f14293-11b8-4a67-8213-b321bbdec020/full/843,/0/default.jpg)