1908
National Gallery of Art, 1660
National Gallery of Art, 1936
National Gallery of Art, 1949
National Gallery of Art, 1837
National Gallery of Art, 1852
National Gallery of Art, 1784
National Gallery of Art, 1952
National Gallery of Art, 1518
National Gallery of Art, 1622
National Gallery of Art, 1935
National Gallery of Art, 1990
National Gallery of Art, 1884
![Two Cow's Heads [verso]](https://api.nga.gov/iiif/b0e65972-ba4c-4686-b78f-d69803a06555/full/843,/0/default.jpg)