Babinet goniometer for mineralogical studies, by Dumotiez in - Lot 424

Lot n° 424
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Estimation :
300 - 400 EUR
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Result : 510EUR
Babinet goniometer for mineralogical studies, by Dumotiez in - Lot 424
Babinet goniometer for mineralogical studies, by Dumotiez in Paris, circa 1840. Brass; overall length: 21 cm; circle diameter: 12 cm. Missing movable bezel. Instrument for measuring refraction angles, invented by physicist and astronomer Jacques Babinet in 1839.
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