1503–1574
National Gallery of Art, 1938
National Gallery of Art, 1833
National Gallery of Art, 1951
Duveen Brothers, Inc., 1450
National Gallery of Art, 1971
National Gallery of Art, 1547
National Gallery of Art, 1858
Duveen Brothers, Inc., 1500
National Gallery of Art, 1913
National Gallery of Art, 1939
National Gallery of Art, 1936
![Hourglass on an Inscribed Tablet [reverse]](https://api.nga.gov/iiif/932f3213-b9ff-4c28-ba9e-3fb71fbf1d4f/full/843,/0/default.jpg)
