Eugène Cuvelier, ‘Mare à Piat (Marsh at Piat)’, ca. 1863, National Gallery of Art, Washington, D.C.
image: 25.7 x 34 cm (10 1/8 x 13 3/8 in.)  mount: 49.4 x 60.6 cm (19 7/16 x 23 7/8 in.)