Ditch and "Chevaux de frise" in front of the Union Fort Sedgwick, called by the Rebel soldiers "Fort Hell."...

Civil War stereoscopic card.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of more than six decades, Robert N. Dennis (1900-1983).

Stereographs consist of two nearly identical photographs or photomechanical prints, paired to produce the illusion of a single three-dimensional image, usually when viewed through a stereoscope. Stereographs were produced from the 1850s to the 1940s, with the bulk between 1870 and 1920.

history civil war 1861 1865 union fort sedgwick fort rebel soldiers e h t anthony firm publisher brady mathew b 1823 ca 1896 photographer stereoscopic views ditch front union sedgwick rebel soldiers civil war war views robert dennis collection of stereoscopic views 19th century ultra high resolution high resolution american civil war back side new york public library back of stereoscopic card

1861 - 1865

New York Public Library

https://digitalcollections.nypl.org/

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