Charles S. Humphreys, ‘The Trotter’, ca. 1860, National Gallery of Art, Washington, D.C.
overall: 50.8 x 91.6 cm (20 x 36 1/16 in.)  framed: 68.6 x 109.9 x 9.5 cm (27 x 43 1/4 x 3 3/4 in.)