1472
National Gallery of Art, 1985
National Gallery of Art, 1946
National Gallery of Art, 1952
National Gallery of Art, 1940
National Gallery of Art, 1938
National Gallery of Art, 1959
National Gallery of Art, 1570
National Gallery of Art, 1870
National Gallery of Art, 1925
National Gallery of Art, 1571
National Gallery of Art, 1884
National Gallery of Art, 1964
![Aesculapius and Urania [reverse]](https://api.nga.gov/iiif/377be3eb-4144-4fee-b8f0-550b454331be/full/843,/0/default.jpg)
![Architekturstudie (Architectural Study) [p. 12]](https://api.nga.gov/iiif/c24cd857-a9fa-4ff4-98cf-1335e4f2434f/full/843,/0/default.jpg)
