1912
Erich Heckel, 1908
Erich Heckel, 1913
Erich Heckel, 1910
Erich Heckel, 1920
Erich Heckel, 1883
Erich Heckel, 1918
Erich Heckel, 1919
Erich Heckel, 1912
![Siddi in Bed [recto]](https://api.nga.gov/iiif/1b5c9f37-fbdc-41b8-90b2-e0b9e3d9a95f/full/843,/0/default.jpg)
![Portrait of a Man (Männerbildnis) [Self-Portrait]](https://api.nga.gov/iiif/455c1592-b8cf-414d-a231-83f02ff880f5/full/843,/0/default.jpg)