Annual Report 1859. No. 40 Improved Form of Sub Current Apparatus Devised for use of the Coast Survey by H. Mitchell Asst. An Improved Form of Pile for Securing Structures in the Sea Devised for the use of the Coast Survey by H. Mitchell Asst.
Image ID: cgs06130, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photo Date: 1859 Credit: United States Coast Survey Annual Report 1859 • High Resolution Photo Available
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