1928
Patrons' Permanent Fund, 1971
Patrons' Permanent Fund, 1969
Patrons' Permanent Fund, 1987
Dan and Mary Solomon, 1963
Patrons' Permanent Fund, 1973
Dan and Mary Solomon, 1977
Patrons' Permanent Fund, 1618
Patrons' Permanent Fund, 1974
Dan and Mary Solomon, 1969
Dan and Mary Solomon, 1891
Patrons' Permanent Fund, 1994
Patrons' Permanent Fund, 1963
![Figure 6 [color trial proof]](https://api.nga.gov/iiif/57ec32d2-ee51-4dd0-b369-ee69e962bee7/full/843,/0/default.jpg)
![The Seasons (Spring) [trial proof]](https://api.nga.gov/iiif/227afec8-07f8-4176-9180-7e0d3628701c/full/843,/0/default.jpg)
![Target [trial proof]](https://api.nga.gov/iiif/d875e7ba-e041-44a0-84d6-081e7d24739e/full/843,/0/default.jpg)
![Construction of Rock and Brush Dam, L[ow]. W[ater]. 1891](https://api.nga.gov/iiif/0fdd570f-b2be-422b-94ef-b1713a6af55b/full/843,/0/default.jpg)
![Green Angel 2 Experimental Lithos [trial proof]](https://api.nga.gov/iiif/90227323-1cc7-4333-a46d-c5fbf7e8b676/full/843,/0/default.jpg)
