Vicomte Ludovic Napoléon Lepic, ‘Lake Nemi’, 1870, National Gallery of Art, Washington, D.C.
plate: 24 x 31.7 cm (9 7/16 x 12 1/2 in.)  sheet: 31.4 x 42.4 cm (12 3/8 x 16 11/16 in.)