1855–1859
Patrons' Permanent Fund, 1976
Patrons' Permanent Fund, 1993
Patrons' Permanent Fund, 1989
Patrons' Permanent Fund, 1991
Patrons' Permanent Fund, 1973
Patrons' Permanent Fund, 1997
C. Robinson, 1964
Patrons' Permanent Fund, 1974
Patrons' Permanent Fund, 1488
Patrons' Permanent Fund, 1980
![Four Panels (ABCD) [trial proof]](https://api.nga.gov/iiif/365aaf7d-c81e-4787-9f51-eea3ff6828b3/full/843,/0/default.jpg)
![After Holbein [trial proof]](https://api.nga.gov/iiif/76dbd9be-66f3-4432-a357-a83e11962221/full/843,/0/default.jpg)
![The Seasons (Spring) [state proof of 13th state]](https://api.nga.gov/iiif/bb11df0d-dbff-4302-8d34-c7f8b5fafb84/full/843,/0/default.jpg)
![Summer (Blue) [proof]](https://api.nga.gov/iiif/214474c3-207c-4168-9655-6825cdd58904/full/843,/0/default.jpg)
![Four Panels from Untitled 1972 [C panel, trial proof 5]](https://api.nga.gov/iiif/3b3f0ca3-37fd-4885-a4b7-78a02265e09f/full/843,/0/default.jpg)
![Green Angel 2 [proof of 1st element, plate B, 1st state]](https://api.nga.gov/iiif/394e1d40-81ad-4a3d-820b-4c2cec090b30/full/843,/0/default.jpg)
![Green Angel 2 [trial proof 5]](https://api.nga.gov/iiif/b60dce16-445a-44c2-b364-02746d6e254d/full/843,/0/default.jpg)
![Winter [trial proof]](https://api.nga.gov/iiif/ef47b891-ef67-4069-aa65-654e3c35bc4c/full/843,/0/default.jpg)
