Seascape drawing with four sketches of floating icebergs, each with a horizon line below. Date: possibly 1859. Dimensions: 11.5 × 21.1 cm (4 1/2 × 8 5/16 in.). Medium: graphite on light brown paper. Collection: Cooper Hewitt, Smithsonian Design Museum. Drawing, Floating Icebergs, possibly 1859 (CH 18196479)
