1500–1550
National Gallery of Art, 1946
National Gallery of Art, 1775
National Gallery of Art, 1767
National Gallery of Art, 1971
National Gallery of Art, 1938
National Gallery of Art, 1944
National Gallery of Art, 1974
National Gallery of Art, 1609
National Gallery of Art, 1467
National Gallery of Art, 1923
Dreyfus, Gustave, 1538
Dreyfus, Gustave, 1496
![Abstract Composition in Blue, Black, Red, and Yellow [verso]](https://api.nga.gov/iiif/bc418a9b-a288-47c1-9644-8c5e1d90de80/full/843,/0/default.jpg)
![Male Figure Holding an Hourglass [reverse]](https://api.nga.gov/iiif/d83cff9f-890d-4251-a067-f096a6105cd0/full/843,/0/default.jpg)
![Coat of Arms [reverse]](https://api.nga.gov/iiif/cc437c31-5c6c-4eb5-bafa-57170c67237d/full/843,/0/default.jpg)
![Chiara Gonzaga, 1464-1503, Wife of Gilbert de Bourbon 1481 [obverse]](https://api.nga.gov/iiif/9ac1eeb7-7fdc-4e75-9838-1ad32ee806aa/full/843,/0/default.jpg)