1972
National Gallery of Art, 1884
National Gallery of Art, 1838
National Gallery of Art, 1860
National Gallery of Art, 1880
National Gallery of Art, 1931
National Gallery of Art, 1930
National Gallery of Art, 1624
National Gallery of Art, 1937
National Gallery of Art, 1470
National Gallery of Art, 1850
National Gallery of Art, 1936
![drei Köpfe und Beschriftung (Three Heads, One Notation) [p. 11]](https://api.nga.gov/iiif/851f1eac-bef9-4b2d-adca-c60d3a560013/full/843,/0/default.jpg)
