Title: [Ditch and Chevaux-de-frise, Fort Sedgwick, in Front of Petersburg, Virginia]
Object type: Photograph
Date: April 2, 1865
Artist: Attributed to Timothy H. O'Sullivan 
Artist bio: American, born Ireland, 1840–1882
Artist nationality: American, born Ireland
Artist role: Artist
Medium: Albumen silver print from glass negative
Dimensions: 8.7 x 9.4 cm (3 7/16 x 3 11/16 in. )
Classification: Photographs
Credit line: Harris Brisbane Dick Fund, 1933
Department: Photographs
Repository: Metropolitan Museum of Art, New York, NY
Tags: term: Fortification, term: American Civil War