Portrait of a Man

1855–1865

Medium: ambrotype
Dimensions: image (visible): 7.3 × 5.8 cm (2 7/8 × 2 5/16 in.) mat: 8.3 × 7 cm (3 1/4 × 2 3/4 in.) case (closed): 9.5 × 8.3 × 2.2 cm (3 3/4 × 3 1/4 × 7/8 in.)
Genre: Photograph
Museum: National Gallery of Art, Washington, DC, US