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?t=t&id=57036549 Map of the Department of the Columbia / Projected and compiled at the Engineer Office, Department of the Columbia, by Lieut. Thomas W. Symons, Corps of Engineers ; assisted by Alfred Downing and C.C. Manning, topographical assistants, U.S. Army ; draw...
From Parts (In 4 layers) Depicts: 1887 Last modified 5 months ago. 11 control points.
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