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Robert Williams with first Fessenden oscillator on the tug Susie D Picture

Robert Williams with first Fessenden oscillator on the tug Susie D

Robert Williams with first Fessenden oscillator on the tug Susie D. First successful test of sonic system. Looking for icebergs but also found bottom

Photo Category: Charting - Soundings - Electronic
Photo Location: North Atlantic
Photo Date: 1914

Author: NOAA Central Library/ NOAA

License: Public Domain Mark 1.0 (Public domain)
640 x 505 95.34 KB
1280 x 1009 440.43 KB
1356 x 1068 752.78 KB
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Added On
18th October 2015
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