Snowy Owl. Dated: 1831. Dimensions: plate: 89.5 x 65.4 cm (35 1/4 x 25 3/4 in.) sheet: 100.7 x 68 cm (39 5/8 x 26 3/4 in.). Medium: hand-colored etching and aquatint on Whatman paper. Museum: National Gallery of Art, Washington DC. Author: Robert Hav