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       Author [U.S. War Department, Weyss, John E.] Full Title Antietam. Prepared by Bvt. Brig. Gen N. Michler, Major of Engineers from Surveys under his direction by order of Brig. Genl. & Bvt. Maj. Genl. A.A. Humphreys, Chief of Engineers and under the Authority of the Hon. Secretary of War. 1867. Surveyed & drawn by Maj. J.E. Weyss, assisted by F. Theilkuhl, J. Strasser & G. Thompson. Photolith. by the N.Y. Lithographing, Engraving & Printing Co., Julius Bien, Supt. (under War Department Seal) 1869. Publisher N.Y. Lithographing, Engraving & Printing Co. 
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