1939
National Gallery of Art, 1625
United States Government, 1935
National Gallery of Art, 1757
National Gallery of Art, 1595
National Gallery of Art, 1949
National Gallery of Art, 1937
National Gallery of Art, 1628
United States Government, 1940
National Gallery of Art, 1939
United States Government, 1936
National Gallery of Art, 1945
National Gallery of Art, 1884
![Akrobat in der Brücke (Backbend) [p. 1]](https://api.nga.gov/iiif/37f332a7-1158-4fe2-b243-5e7f54e69b25/full/843,/0/default.jpg)