![](http://www.alamy.com/thumbs/6/A8332458-550D-4EFA-A280-030124572E85/2X680HT.jpg)
Petersburg, Virginia. Group of Engineers and Draughtsmen, headquarters, Army of the Potomac, Civil War Photographs 1861-1865
Size: 2969px × 2356px
Photo credit: © piemags/LCB / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., 1861-1865., states--history--civil, united, war