1970
National Gallery of Art, 1800
National Gallery of Art, 1503
National Gallery of Art, 1533
National Gallery of Art, 1955
National Gallery of Art, 1555
National Gallery of Art, 1775
National Gallery of Art, 1937
National Gallery of Art, 1603
National Gallery of Art, 1969
National Gallery of Art, 1964
National Gallery of Art, 1867
National Gallery of Art, 1631
![Hourglass on an Inscribed Tablet [reverse]](https://api.nga.gov/iiif/932f3213-b9ff-4c28-ba9e-3fb71fbf1d4f/full/843,/0/default.jpg)
