A regular full-color chart is printed on a sheet of plastic and pressed over a
steel mold, providing a light, flexible, relief map.
Image ID: cgs00116, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1945 Ca.
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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