2002
National Gallery of Art, 1936
National Gallery of Art, 1940
National Gallery of Art, 1990
National Gallery of Art, 1673
National Gallery of Art, 1744
National Gallery of Art, 1898
National Gallery of Art, 1878
National Gallery of Art, 1973
National Gallery of Art, 1884
National Gallery of Art, 1935
National Gallery of Art, 1963
![Singender (?) Mann und begonnene Studie (Two Figures, One Might Be Singing) [p. 15]](https://api.nga.gov/iiif/4e21a3be-173d-4259-83aa-4cbcdf1bb977/full/843,/0/default.jpg)
