1889
National Gallery of Art, 1967
Williams, Dave H. and Reba W., 1940
National Gallery of Art, 1936
National Gallery of Art, 1937
National Gallery of Art, 1790
National Gallery of Art, 1460
National Gallery of Art, 1935
National Gallery of Art, 1925
National Gallery of Art, 2003
National Gallery of Art, 1901
National Gallery of Art, 1775
![Watchman [working proof]](https://api.nga.gov/iiif/76fc40be-48de-49c4-a84a-bef2d0bea4f3/full/843,/0/default.jpg)
![Eco del reloj [Clock Echo]](https://api.nga.gov/iiif/090d9aa1-ca72-4c49-8202-a0919ef133f2/full/843,/0/default.jpg)
