A.A. Lamb, ‘Emancipation Proclamation’, 1864 or after, National Gallery of Art, Washington, D.C.
overall: 82.5 x 137.2 cm (32 1/2 x 54 in.)  framed: 96.5 x 151 x 5.3 cm (38 x 59 7/16 x 2 1/16 in.)