1800–1803
Patrons' Permanent Fund, 1850
the elder Carl Wilhelm Kolbe
Stiftung Ratjen, 1752
Patrons' Permanent Fund, 1969
Patrons' Permanent Fund, 1825
Patrons' Permanent Fund, 1835
Patrons' Permanent Fund, 1966
Patrons' Permanent Fund, 1912
Patrons' Permanent Fund, 1975
Patrons' Permanent Fund, 1928
Patrons' Permanent Fund, 1977
Patrons' Permanent Fund, 1971
![Figure 2 [trial proof]](https://api.nga.gov/iiif/3eed4c8e-78f0-4db2-bab4-6351c1b36b94/full/843,/0/default.jpg)
![Light Bulb [trial proof]](https://api.nga.gov/iiif/39f6b9a2-a46c-4656-b348-585b10ca5b83/full/843,/0/default.jpg)
![Untitled [working proof]](https://api.nga.gov/iiif/e9b360a2-10b6-489e-b53e-00d6010767c9/full/843,/0/default.jpg)
![Savarin and Savarin E.M. [trial proof]](https://api.nga.gov/iiif/8a6a5468-9ee3-4678-be87-1b56cb64a7e7/full/843,/0/default.jpg)
![Coathanger and Spoon [proof]](https://api.nga.gov/iiif/93326aa8-55be-4c1d-9291-73fb38e28600/full/843,/0/default.jpg)