April 1865. "Washington, District of Columbia. Group of Quartermaster Corps employees." I detect a pattern here, and it's checks. Wet plate glass negative. Civil War glass negative collection, Library of Congress. View full size.
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April 1864. "Brandy Station, Virginia. Major William Riddle and friends. Headquarters, Army of the Potomac." Wet plate negative by Timothy H. O'Sullivan. Civil War glass plate collection, Library of Congress. View full size. Read Post
March 1862. "Washington, District of Columbia. Government repair shops -- wheelwright shop." Annotation from plate: "3/13/62 Mr. Marshall, Shop No 1." Wet plate negative, Library of Congress Civil War Collection. View full size. Read Post
More Civil War cutups. "Unidentified men in Union uniforms, one pointing a revolver at another's head." Half-plate tintype, hand-colored. Liljenquist Family Collection of Civil War Photographs, Library of Congress. View full size. Read Post