Recording tide predictions from the dials of the U.S. Coast and Geodetic Survey
tide-predicting machine. The operator is Burt W. Wilcox.
Image ID: cgs01640, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Washington, D.C.
Photo Date: 1939
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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November 10, 2017