Sonar field-testing, Cousteau expedition - 1954

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Description: (curated)

Sonar instrument being maneuvered on cables by CALYPSO crew members (including Albert Falco, left?), during a Cousteau expedition likely in the Mediterranean Sea. Poorly legible slide label indicates it is the first [sand?] sonar, possibly referring to mud penetration. (CC)

HEE-SC-03786

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