1925
National Gallery of Art, 1926
National Gallery of Art, 1786
National Gallery of Art, 1935
National Gallery of Art, 1937
National Gallery of Art, 1632
National Gallery of Art, 1936
Rosenwald, Lessing Julius, 1600
National Gallery of Art, 1669
Rosenwald, Lessing Julius, 1909
National Gallery of Art, 1941
Rosenwald, Lessing Julius, 1490
![Nude Male Figure [recto]](https://api.nga.gov/iiif/48932959-54b6-485d-8644-db61eaad912b/full/843,/0/default.jpg)
![The Mass of Saint Gregory [recto]](https://api.nga.gov/iiif/4d23fcb3-6c20-4387-b54f-a89d717bd134/full/843,/0/default.jpg)