Leila T. Bauman, ‘U.S. Mail Boat’, 1855 or later, National Gallery of Art, Washington, D.C.
overall: 51.4 x 67.3 cm (20 1/4 x 26 1/2 in.)  framed: 62.5 x 77.8 x 3.8 cm (24 5/8 x 30 5/8 x 1 1/2 in.)