Contract wiredrag launch TWILIGHT.
First view without wiredrag gear - second with wiredrag gear installed.
Semaphore signalling device installed on second picture
Image ID: theb2433, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Florida Keys
Photo Date: 1917
Credit: C&GS Season's Report Hawley 1917-41
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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April 30, 2013