Mississippi. Historic map, Library of Congress

Shows drainage, counties, townships, roads, railroads, etc.
In upper right margin: No. 32.
Prime meridians: Greenwich and Washington.
"Entered according to act of Congress in the year 1855 by J.H. Colton in the Clerks Office of the District Court of the United States for the Southern District of New York."
From Colton's Atlas of the world. New York : J.H. Colton, 1855-56.
Available also through the Library of Congress Web site as a raster image.