1884–1888
National Gallery of Art, 1935
National Gallery of Art, 1595
National Gallery of Art, 1937
National Gallery of Art, 1955
National Gallery of Art, 1516
National Gallery of Art, 1442
National Gallery of Art, 1956
National Gallery of Art, 1962
National Gallery of Art, 1632
National Gallery of Art, 1905
National Gallery of Art, 1836
![Studies of a Cow [verso]](https://api.nga.gov/iiif/598328ce-72ec-4b2c-90ae-500069945b17/full/843,/0/default.jpg)
