Will Insley, Stage Space, Reduce, (1967), Ink and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35864

Will Insley, Mountain Isometric, 1972, Pencil and colored pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38230

Will Insley, Stage Space, Isometric, 1972, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38231