![](http://www.alamy.com/thumbs/6/7E32B5FE-F0C3-43E0-B61A-3B93866BE28B/2WRBJYG.jpg)
Gettysburg, Pennsylvania. Line of breastworks on Round Top, O'Sullivan, Timothy H., 1840-1882, photographer, 1863 July., United States, History, Civil War, 1861-1865, Glass negatives, 1860-1870., Stereographs, 1860-1870, Glass negatives, 1860-1870, 3 negatives (3 plates): glass, stereograph, wet collodion
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Photo credit: © Penta Springs / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1840-1882, 1860-1870, 1861-1865, 3, 1863, breastworks, civil, collodion., gettysburg, glass, history, july, line, negatives, pennsylvania, photographer, plates, states, stereograph, stereographs, sullivan, timothy, top, united, war, wet