Gerhard Marcks, Die eule (The owl), 1921, Woodcut on wove paper, Queensland Art Gallery and Gallery of Modern Art, Brisbane. https://dartabase.art/cite/qagoma/65744

Gerhard Marcks, Standing Nude, Back (Stehender Rückenakt), (c. 1938), Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34010