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Coast Geodetic Survey
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Computation book page showing method of determining final value of observedangle.
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Computation book page showing method of determining final value of observedangle.
4/3/2019 11:52:45 AM
Date:
1837 ca.
Credit:
NARA C&GS; Colllection
Location:
New York, Long Island
Subject:
Coast and Geodetic Survey
Subject:
Archive
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