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.
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| 2148 x 1897 | 503.55 KB |
| Added On | 16th October 2015 |
| Viewed | 7 viewed |
