Aimé Félix Del Marle, The Endeavor, (March 1913), Charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37479

Aimé Félix Del Marle, Self Portrait (recto); Beggar (verso), 1913, Chalk and charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37486

Aimé Félix Del Marle, Looping, 1914, Charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38278