Annual Report 1862. No. 1 Sketch A Showing the Primary Triangulation in Section No. 1 From 1844 to 1862 Showing the Connection of the Baselines in Sections I and II
Image ID: cgs06191, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photo Date: 1862 Credit: United States Coast Survey Annual Report 1862 • High Resolution Photo Available
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