1951
National Gallery of Art, 1480
National Gallery of Art, 1884
National Gallery of Art, 1936
Rosenwald, Lessing Julius, 1894
National Gallery of Art, 1933
National Gallery of Art, 1854
National Gallery of Art, 1914
National Gallery of Art, 1503
National Gallery of Art, 1963
National Gallery of Art, 1961
National Gallery of Art, 1935
National Gallery of Art, 1950
![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)
