[Petersburg], [Virginia]. Group of Engineers and Draughtsmen, headquarters, Army of the Potomac

Title from Civil War caption books.Caption from negative sleeve: Group of Engineers and Draughtsmen, Head Quarters, Army of the Potomac, Nov. 1864.Annotation from negative, glass side: group of engineers [and] draughtsmen A. P. [?] NO.106 NOV. 1864.Corresponding print is in LOT 4188.Forms part of Civil War glass negative collection (Library of Congress)