1965
Patrons' Permanent Fund, 1966
Patrons' Permanent Fund, 1982
Patrons' Permanent Fund, 1981
Patrons' Permanent Fund, 1977
Patrons' Permanent Fund, 1973
Patrons' Permanent Fund, 2001
Patrons' Permanent Fund, 1995
Patrons' Permanent Fund, 1923
Patrons' Permanent Fund, 1946
![Two Maps I [trial proof]](https://api.nga.gov/iiif/b6505579-34c0-4111-8171-f3239654f9ee/full/843,/0/default.jpg)
![Periscope [working proof]](https://api.nga.gov/iiif/8b759dc5-1b66-4193-9896-2cdf46fee25a/full/843,/0/default.jpg)
![Target [trial proof]](https://api.nga.gov/iiif/d875e7ba-e041-44a0-84d6-081e7d24739e/full/843,/0/default.jpg)
![Untitled [state proof of 3rd state]](https://api.nga.gov/iiif/eb3b9bf2-79de-41a0-9609-c58693b717f9/full/843,/0/default.jpg)
![Untitled [trial proof]](https://api.nga.gov/iiif/005cd08d-3fc4-41af-bff2-7aa2840a95d5/full/843,/0/default.jpg)
![Untitled (Purple Mezzotint) [trial proof]](https://api.nga.gov/iiif/edddad95-76bf-475d-b306-988650f811a6/full/843,/0/default.jpg)
![Untitled [trial proof 1]](https://api.nga.gov/iiif/69c17593-d8b0-4c5a-a012-6a701038cfc8/full/843,/0/default.jpg)
