Jean-Jacques de Boissieu, ‘Seven Studies of Heads’, 1793, National Gallery of Art, Washington, D.C.
plate: 24.8 x 19.8 cm (9 3/4 x 7 13/16 in.)  sheet: 33 x 25.6 cm (13 x 10 1/16 in.)

About Jean-Jacques de Boissieu