1844
National Gallery of Art, 1945
National Gallery of Art, 1963
National Gallery of Art, 1503
National Gallery of Art, 1565
National Gallery of Art, 1400
National Gallery of Art, 1879
National Gallery of Art, 1910
National Gallery of Art, 1883
National Gallery of Art, 1976
National Gallery of Art, 1852
National Gallery of Art, 1887
National Gallery of Art, 1954
![Flagstones (b) [trial proof 4]](https://api.nga.gov/iiif/1fea9c16-3ece-4d0e-80ee-0ed4a43c9683/full/843,/0/default.jpg)
