1750–1755
Patrons' Permanent Fund, 1969
Patrons' Permanent Fund, 1990
Patrons' Permanent Fund, 1971
Patrons' Permanent Fund, 1976
Franz Karl Palko, 1765
Patrons' Permanent Fund, 1775
Stiftung Ratjen, 1893
Patrons' Permanent Fund, 1851
Patrons' Permanent Fund, 1975
Patrons' Permanent Fund, 1970
Patrons' Permanent Fund, 1951
![Coathanger and Spoon [proof]](https://api.nga.gov/iiif/349401ac-7c1a-44b3-b5f1-15064ec2ee4c/full/843,/0/default.jpg)
![Figure 4 [trial proof 6]](https://api.nga.gov/iiif/6e3b92c2-d9a5-474b-968a-884010a30ab6/full/843,/0/default.jpg)
![0-9 [trial proof, figure 5]](https://api.nga.gov/iiif/84c28972-ab87-4792-ac53-895d25d2b03d/full/843,/0/default.jpg)
![Figure 7 [trial proof]](https://api.nga.gov/iiif/c4c2b990-d784-4391-b170-bce485df9b0a/full/843,/0/default.jpg)