1978
Patrons' Permanent Fund, 1974
Patrons' Permanent Fund, 2000
Patrons' Permanent Fund, 1939
Pappajohn, John, Mr. and Mrs., 1976
Glenstone, 1976
Patrons' Permanent Fund, 1995
Patrons' Permanent Fund, 1978
Patrons' Permanent Fund, 2001
Patrons' Permanent Fund, 1922
![Celine [trial proof]](https://api.nga.gov/iiif/92c72333-1890-4176-826a-4759c02068d6/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/f7ad83d1-0c10-4814-8bd4-e0dd1e0772bf/full/843,/0/default.jpg)
![#1 (after 'Untitled 1975') [working proof]](https://api.nga.gov/iiif/3e7d05ce-f987-41ea-a420-f40a1df88ef0/full/843,/0/default.jpg)
![Hatching [trial proof 4]](https://api.nga.gov/iiif/711a5173-7b72-4d06-9bd8-4938048c7d92/full/843,/0/default.jpg)
![Untitled (White Mezzotint) [trial proof]](https://api.nga.gov/iiif/897fe624-9207-4b7a-9796-67f0a7c1bb08/full/843,/0/default.jpg)
![Four Panels (DABC) [trial proof 4]](https://api.nga.gov/iiif/9fc485d8-02c6-4d2c-888c-096531b155de/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/a06c9322-ae4e-4bfd-8c0a-03ffb1cd4310/full/843,/0/default.jpg)
![Hatching [trial proof 2]](https://api.nga.gov/iiif/13d8b819-152b-4e32-b3cb-fee7d2426d02/full/843,/0/default.jpg)
