Incomplete Open Cube (1968) by Sol LeWitt (1928-2007).
Salcman
Michael
M
D001154:Art / Q000266:history*; D001921:Brain / Q000033:anatomy & histology* / Q000502:physiology*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D007088:Illusions / Q000502:physiology*; D008512:Medicine in the Arts; D014796:Visual Perception / Q000502:physiology*