1907
Erich Heckel, 1932
Erich Heckel, 1916
Erich Heckel, 1907
Erich Heckel, 1930
Erich Heckel, 1919
Erich Heckel, 1914
Erich Heckel, 1883
Erich Heckel, 1913
Erich Heckel, 1912
Erich Heckel, 1923
![Landscape [verso]](https://api.nga.gov/iiif/65a95659-fa9b-4b26-9a3f-25ec6e8f757c/full/843,/0/default.jpg)
![Arbeitende Frau [verso]](https://api.nga.gov/iiif/a3bc95d3-7a89-4726-aae3-f0211879a31e/full/843,/0/default.jpg)
![Siddi in Bed [recto]](https://api.nga.gov/iiif/1b5c9f37-fbdc-41b8-90b2-e0b9e3d9a95f/full/843,/0/default.jpg)
