1879. United States. Army. Office of the Chief of Engineers. Shows railroads.; Relief shown by hachures. 80 x 72 centimeters Scale approximately 1:1,520,640 not 1:1,500,000 General Map Collection. U.S. Army? (Washington, D.C.?).
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1879. United States. Army. Office of the Chief of Engineers. Prime meridians: Greenwich and Washington. 99 x 147 centimeters Scale approximately 1:3,300,000 General Map Collection. Chief of Engineers (Washington).
1879. United States. Army. Office of the Chief of Engineers. Relief shown by hachures. 55 x 78 centimeters Scale 1:1,500,000 General Map Collection. Office of the Chief of Engineers U.S.A (Washington).