Sono-radio-buoy developed by Almon Vincent for RAR work. Buoy deployed from the GUIDE
Image ID: theb2266, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photo Date: 1936 Credit: C&GS Season's Report Hardy 1936-98 Category: Charting/Navigation/Electronic/Radio-Acoustic Ranging/ • High Resolution Photo Available
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