1867
National Gallery of Art, 1435
National Gallery of Art, 1973
National Gallery of Art, 1662
National Gallery of Art, 1936
National Gallery of Art, 1939
National Gallery of Art, 1884
National Gallery of Art, 1798
National Gallery of Art, 1903
National Gallery of Art, 1957
National Gallery of Art, 1886
National Gallery of Art, 1472
![Zwei Köpfe, Zuschauer (Two Spectators) [p. 20]](https://api.nga.gov/iiif/1fe7b055-83e6-4e69-b6b9-40cc89b8acc5/full/843,/0/default.jpg)
![Hercules and Three Columns in the Sea [reverse]](https://api.nga.gov/iiif/d62e3667-389f-4941-831e-b47e5a637aa7/full/843,/0/default.jpg)
