1884–1888
National Gallery of Art, 1561
National Gallery of Art, 1957
National Gallery of Art, 1997
National Gallery of Art, 1550
National Gallery of Art, 1709
National Gallery of Art, 1967
National Gallery of Art, 1720
National Gallery of Art, 1939
National Gallery of Art, 1676
National Gallery of Art, 1937
National Gallery of Art, 1755
![A Pig; Breton Peasant Kneeling [verso]](https://api.nga.gov/iiif/13146db4-7e29-45f6-befe-7d3904ec97c0/full/843,/0/default.jpg)
![Study VI, New York Harbor [verso, #41, red-gray]](https://api.nga.gov/iiif/4ef93c79-2dcc-4f67-a9fc-1946bbe66228/full/843,/0/default.jpg)
![Gian Michele Zerbi [obverse]](https://api.nga.gov/iiif/2a7b6492-3127-4cf7-bc1d-22af4d8ce3a0/full/843,/0/default.jpg)
