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Roberts radio current meter.

Roberts radio current meter.
Roberts radio current meter.
Roberts radio current meter.
Roberts radio current meter.
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170221
Unattributed
Roberts radio current meter.
Still Image
01/01/1940
archives/InstrumentPhotos/SI-138a.tif
Instrument: #138A
Designer:
Manufacturer: U.S.N. Hydrographic Office
Negative: A-0141 E
Date is approximate.
Photo courtesy of WHOI Archives
© Woods Hole Oceanographic Institution
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