Fernand Léger, Verdun, The Trench Diggers ( Verdun, les foreurs ), 1916, Watercolor on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34690

Fernand Léger, Seated Nude, 1913, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34199

Fernand Léger, The Game of Cards, 1916, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38600

Constantin Brancusi, View of the Artist's Studio, 1918, Gouache and pencil on board, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33263

Fernand Léger, Contrast of Forms, 1912, Charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34165

Constantin Brancusi, Study related to The First Step, 1913, Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/32964