1972
National Gallery of Art, 1968
National Gallery of Art, 1544
National Gallery of Art, 1960
National Gallery of Art, 1940
National Gallery of Art, 1957
National Gallery of Art, 1915
National Gallery of Art, 1955
National Gallery of Art, 1470
National Gallery of Art, 1933
National Gallery of Art, 1939
National Gallery of Art, 1963
National Gallery of Art, 1450
![Zone [working proof]](https://api.nga.gov/iiif/9c42b76d-c997-468c-aed0-01333e425774/full/843,/0/default.jpg)
![Figure 1 [trial proof]](https://api.nga.gov/iiif/5f7df10f-e8aa-4ee1-93f0-735dddb5a1cc/full/843,/0/default.jpg)
