Frederick W. Mayhew, ‘John Harrisson’, ca. 1823, National Gallery of Art, Washington, D.C.
overall: 76 x 63.4 cm (29 15/16 x 24 15/16 in.)  framed: 99.7 x 87.2 x 6.4 cm (39 1/4 x 34 5/16 x 2 1/2 in.)