1903–1970
National Gallery of Art, 1919
National Gallery of Art, 1960
National Gallery of Art, 1935
National Gallery of Art, 1943
National Gallery of Art, 1845
National Gallery of Art, 1847
National Gallery of Art, 1525
National Gallery of Art, 1616
National Gallery of Art, 1475
National Gallery of Art, 1990
National Gallery of Art, 1955
![Study of a Head [verso]](https://api.nga.gov/iiif/7954f5d0-6b41-4d1e-87c1-560ee5dcff05/full/843,/0/default.jpg)
![Various Occupations [recto]](https://api.nga.gov/iiif/f9a3bdc9-11a0-4eb1-a742-409ec97ede37/full/843,/0/default.jpg)
![Lost-Wax Casting Display: wax model with conduits [sixth of ten steps]](https://api.nga.gov/iiif/6ff6362d-8e78-4cc1-bd3b-fb15d15fd898/full/843,/0/default.jpg)
