Ambrotype of a Civil War soldier
1861–1865
collodion and silver on glass photographic plates; Closed: 3 × 2 5/8 × 7/8 in. (7.6 × 6.7 × 2.2 cm); Open: 3 × 5 1/8 × 9/16 in. (7.6 × 13 × 1.4 cm); 3 x 5 in. (7.6 x 12.7 cm)
National Museum of African American History and Culture
Public domain