Erich Heckel, Two Female Nudes (Zwei weibliche Akte), 1910, Gouache and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36971

Erich Heckel, Head of a Girl (Mädchenkopf), 1912, Graphite on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33991

Erich Heckel, Zwei maenner am tisch (Two men at a table), 1913, Woodcut on Japanese paper, Queensland Art Gallery and Gallery of Modern Art, Brisbane. https://dartabase.art/cite/qagoma/6938

Erich Heckel, Hockende (Crouching woman) (from 'Elf holzschnitte (Eleven woodcuts)' portfolio), 1913, Woodcut on paper, Queensland Art Gallery and Gallery of Modern Art, Brisbane. https://dartabase.art/cite/qagoma/65719

Erich Heckel, Junges mädchen (Young girl), 1913, Woodcut on paper, Queensland Art Gallery and Gallery of Modern Art, Brisbane. https://dartabase.art/cite/qagoma/65720