1500–1599
National Gallery of Art, 1942
National Gallery of Art, 1940
National Gallery of Art, 1947
National Gallery of Art, 1752
Kress Foundation, Samuel H., 1545
National Gallery of Art, 1950
National Gallery of Art, 1614
National Gallery of Art, 1821
National Gallery of Art, 1936
National Gallery of Art, 1937
National Gallery of Art, 1938
![Helen of Troy [obverse]](https://api.nga.gov/iiif/788525ce-a620-4671-ab70-8930dbc172a8/full/843,/0/default.jpg)
![Mercury and a Broken Obelisk [reverse]](https://api.nga.gov/iiif/a88d31b8-e063-4f26-a5d8-4f627d9cb74d/full/843,/0/default.jpg)
