1887
National Gallery of Art, 2001
National Gallery of Art, 1925
National Gallery of Art, 1495
National Gallery of Art, 1956
National Gallery of Art, 1570
National Gallery of Art, 1270
National Gallery of Art, 1937
National Gallery of Art, 1899
National Gallery of Art, 1940
National Gallery of Art, 1950
National Gallery of Art, 2000
National Gallery of Art, 1935
![Figure of Philosophy with a Ladder [reverse]](https://api.nga.gov/iiif/c996fbf2-a80d-47d1-9770-15520b3ceedb/full/843,/0/default.jpg)
![Arch Bridges [working proof 1]](https://api.nga.gov/iiif/1adc2842-dbfd-4da3-a909-39979c8c9ccb/full/843,/0/default.jpg)
