1935–1943
National Gallery of Art, 1929
National Gallery of Art, 1801
National Gallery of Art, 1760
National Gallery of Art, 1958
National Gallery of Art, 1982
National Gallery of Art, 1928
National Gallery of Art, 1951
National Gallery of Art, 1775
National Gallery of Art, 1771
National Gallery of Art, 1955
Williams, Dave H. and Reba W., 1928
National Gallery of Art, 1597
![Visconti Viper (bischera) [reverse]](https://api.nga.gov/iiif/e4342987-8ec2-43b7-aed8-fc5c635c5c05/full/843,/0/default.jpg)
