John Storrs, Study for a Sculpture (Forms in Space), 1923, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38353

John Storrs, Head of Marie Honneger, April 3, 1929, Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35296