1754–1765
National Gallery of Art, 1770
National Gallery of Art, 1944
National Gallery of Art, 1573
National Gallery of Art, 1740
National Gallery of Art, 1837
Bruce Fund, Ailsa Mellon, 1979
National Gallery of Art, 1931
National Gallery of Art, 1510
National Gallery of Art, 1940
National Gallery of Art, 1938
National Gallery of Art, 1850
Bruce Fund, Ailsa Mellon, 1600
![drei Studienköpfe (Three Heads) [p. 19]](https://api.nga.gov/iiif/83c9ec45-6539-4e2a-a5ca-9b57ab954b3f/full/843,/0/default.jpg)
