Daguerreotype, 1/2 plate 11.6 x 8.9 cm (4 9/16 x 3 1/2 ins) (image) 14 x 10.7 cm (5 1/2 x 4 3/16 ins) (plate)
National Portrait Gallery, Smithsonian Institution Smithsonian Institution Conservation made possible by a grant from the Smithsonian's Collections Care and Preservation Fund, Object number: NPG.2009.32