pl23_ship4277.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4277jpgDescription
Figure 67. British Admiralty echo sounder, model MS X. In the 1930's theBritish Admiralty designed a magnetostrictive ultrasonic sounding device whichsubsequently led to the manufacture of magnetostrictive sounding systems byHughes and Son Ltd.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Sounding Instruments
Keywords
Oceanography
Historical instruments