1884–1888
National Gallery of Art, 1475
National Gallery of Art, 1493
National Gallery of Art, 1957
National Gallery of Art, 1988
National Gallery of Art, 1700
National Gallery of Art, 1620
National Gallery of Art, 1937
National Gallery of Art, 1895
National Gallery of Art, 1520
National Gallery of Art, 1934
National Gallery of Art, 1744
National Gallery of Art, 1935
![Two Cow's Heads [verso]](https://api.nga.gov/iiif/b0e65972-ba4c-4686-b78f-d69803a06555/full/843,/0/default.jpg)
