1854–1856
National Gallery of Art, 1994
National Gallery of Art, 1956
National Gallery of Art, 1937
National Gallery of Art, 1970
National Gallery of Art, 1964
National Gallery of Art, 1884
National Gallery of Art, 1938
National Gallery of Art, 1951
National Gallery of Art, 1940
National Gallery of Art, 1514
National Gallery of Art, 1965
National Gallery of Art, 1600
![Torre Romeggio [working proof 22]](https://api.nga.gov/iiif/d9ab5994-911c-41ac-8e1e-fddd7c01c6af/full/843,/0/default.jpg)
![Geometrische Formen mit Notizen (Geometric Shapes with Notations) [p. 15]](https://api.nga.gov/iiif/1bf7c8ea-a117-4c8c-87bf-9970ebf1020b/full/843,/0/default.jpg)
