A relaxed face (left); False joy or laughter (right) by Vincent-Bertillon, Pascal, National Gallery of Art, Duchenne (de Boulogne), Guillaume-Benjamin-Amant, Garbáty Fund, Eugene L. and Marie-Louise — VisualArtsDB

A relaxed face (left); False joy or laughter (right) by Vincent-Bertillon, Pascal, National Gallery of Art, Duchenne (de Boulogne), Guillaume-Benjamin-Amant, Garbáty Fund, Eugene L. and Marie-Louise — VisualArtsDB