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  • Map
    [Map of the fortifications within the District of Columbia]. Relief shown by contours. Depths shown by contours and soundings. Shows buildings within city limits. Shows lot lines and householders' names in rural areas. Oriented with north toward the upper left. Annotated in brown ink: Furnished for the use of the Office of the General of Ordnance by command of M.G. McClellan, J.N. Macomb Lt. Col. & A.D. Camp Chf. T.E. Army of Potomac,...
    • Contributor: United States. Army of the Potomac - McClellan, George (George Brinton)
    • Date: 1862