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Taking a bar check to calibrate fathometer.
Note transducer clamped to side of boat - officer on right monitoring fathometer
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Image ID: theb1487, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Location: Penobscot Bay, Maine
Photo Date: July 1985
Credit: Personnel of NOAA Ship PEIRCE 1985
Category: Charting/Boats/Skiff/Sounding/
• High Resolution Photo Available
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