Augustin de Saint-Aubin, ‘Charles Louis de Secondat Montesquieu’, 1803, National Gallery of Art, Washington, D.C.
plate: 21.9 x 14.7 cm (8 5/8 x 5 13/16 in.)  sheet: 26 x 17.5 cm (10 1/4 x 6 7/8 in.)