1891
National Gallery of Art, 1941
National Gallery of Art, 1903
National Gallery of Art, 1834
National Gallery of Art, 1944
National Gallery of Art, 1509
National Gallery of Art, 1803
National Gallery of Art, 1889
National Gallery of Art, 1959
National Gallery of Art, 1570
National Gallery of Art, 1922
National Gallery of Art, 1925
National Gallery of Art, 1851
![Interior with Figure Sitting Behind a Desk [recto]](https://api.nga.gov/iiif/4b1dfdab-cdfa-46e4-b7d5-74606df472be/full/843,/0/default.jpg)
![Entwurf zu "Vogelspiel" (Sketch for "Birdplay") [p. 31]](https://api.nga.gov/iiif/09dbd1de-8492-417e-8571-fe45ac9cd6c5/full/843,/0/default.jpg)
