Ship's officers, Hubbard, Nelson, Knox and Reed taking horizontal sextant angles on starboard bridge wing of USC&GSS SURVEYOR. Probably determining position of radio acoustic ranging buoy as 4 angles would give multiple checks on position.
Image ID: cgs01784, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection Photographer: Woodrow Wilson Gholston • High Resolution Photo Available
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