Jacob Wilhelm Mechau, ‘Arco di Druso, ora porta di San Sebastiano’, 1794, National Gallery of Art, Washington, D.C.
plate: 38.2 x 28.5 cm (15 1/16 x 11 1/4 in.)  sheet: 49.2 x 38 cm (19 3/8 x 14 15/16 in.)