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Search or browse the Primary Sources database to find objects and documents related to Texas independence, which primarily come from the collections of Star of the Republic Museum. Register or login to create your own personal collection in MyCollection.

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Type > Tools & Equipment > Quadrant

Accession # SRM1980-43.1

Quadrant

1817


Quadrants were navigational tools used by sailing and trading vessels in the 1800's. They worked by measuring the altitude of the sun or a star. Once the sailor had the height, they could calculate their position on the earth.




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