1878. Roeser, Charles. Prime meridians: Greenwich, Washington. Relief shown by hachures. 75 x 46.5 centimeters Scale 1:887,040. 14 miles to 1 inch General Map Collection. United States General Land Office.
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1885. Strum, G. P. (Gustave P.). Relief shown by hachures. 75 x 46.5 centimeters Scale 1:887,040. 14 miles to 1 inch General Map Collection. United States General Land Office.