Louis Gustave Taraval, ‘Hexagonal Temple in an Italianate Landscape’, ca. 1780, National Gallery of Art, Washington, D.C.
image: 34.8 x 55 cm (13 11/16 x 21 5/8 in.)  sheet: 37.2 x 57 cm (14 5/8 x 22 7/16 in.)