Jean-Baptiste-Raphael-Urbain Massard, ‘Louis-Auguste, Dauphin of France’, National Gallery of Art, Washington, D.C.
plate: 9.5 x 7 cm (3 3/4 x 2 3/4 in.)  sheet: 17 x 12.4 cm (6 11/16 x 4 7/8 in.)