1959–1964
National Gallery of Art, 1542
National Gallery of Art, 1812
National Gallery of Art, 1959
National Gallery of Art, 1680
National Gallery of Art, 1863
National Gallery of Art, 1963
National Gallery of Art, 1951
National Gallery of Art, 1939
National Gallery of Art, 1465
National Gallery of Art, 1845
National Gallery of Art, 1988
National Gallery of Art, 1890
![Double-headed Crowned Eagle on the Pillars of Hercules [reverse]](https://api.nga.gov/iiif/0949e463-a88d-48dc-9196-f37e65860d1c/full/843,/0/default.jpg)
![Diagram of a Lunette [verso]](https://api.nga.gov/iiif/018d726b-073f-48c2-b614-96fb3029f47a/full/843,/0/default.jpg)