Signal at Stillpond, Maryland.
Instrument height of 120 feet - top of signal 275 feet.
39th Parallel Survey.
Record signal height from wooden tower
Image ID: theb2462, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1880?
Credit: NOAA Central Library
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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April 30, 2013