Portrait of a School Group

1860–1869

Medium: ambrotype
Dimensions: image (visible): 9.7 × 12.3 cm (3 13/16 × 4 13/16 in.) mat: 11 × 14.5 cm (4 5/16 × 5 11/16 in.) framed: 21.9 × 25 cm (8 5/8 × 9 13/16 in.)
Genre: Photograph
Museum: National Gallery of Art, Washington, DC, US