Inset: Vicinity of Milwaukee. Meridians: Greenwich and Washington. "No. 68"--Upper right corner. Text on verso. "Entered according to Act of Congress in the Year 1855 by J.H. Colton & Co. in the Clerks Office of the Dist. Court of the U.S. for the Southn. Dist. of New York." Dimensions: 44 x 37 centimeters