1977–1978
Richard S. Zeisler, 1976
Patrons' Permanent Fund, 1973
Gemini G.E.L., 1970
Patrons' Permanent Fund, 1928
Jasper Johns, 1969
Pappajohn, John, Mr. and Mrs., 1976
Gemini G.E.L., 1969
Glenstone, 1976
Jasper Johns, 1963
Glenstone, 2013
Patrons' Permanent Fund, 1990
Jasper Johns, 1970
![0 through 9 [trial proof]](https://api.nga.gov/iiif/66b6e2de-94f8-4d4b-bf74-8c5d59b886b2/full/843,/0/default.jpg)
![Flagstones (a) [trial proof 3]](https://api.nga.gov/iiif/a9e44476-425c-4768-a648-d2a9ab3ece41/full/843,/0/default.jpg)
![Face (Black State) [trial proof]](https://api.nga.gov/iiif/8348e835-448a-442c-97dd-1a496ff2d0c4/full/843,/0/default.jpg)
![Figure 6 [working proof]](https://api.nga.gov/iiif/1a96870d-ed0a-44c7-b2d4-585b26d27429/full/843,/0/default.jpg)
![Flagstones (a) [trial proof 1]](https://api.nga.gov/iiif/1c96e21f-d0cc-41db-94a6-48a60e7ef83b/full/843,/0/default.jpg)
![Figure 3 [trial proof]](https://api.nga.gov/iiif/6a5a957c-4366-42c8-b895-0d86a39f5919/full/843,/0/default.jpg)
![HandFootSockFloor [trial proof 6]](https://api.nga.gov/iiif/1e33d096-b809-4bbd-910a-a8b135de9e38/full/843,/0/default.jpg)
