Large demonstration tellurium in iron and brass, base in bla - Lot 192

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  3. Large demonstration tellurium in iron and brass, base in bla - Lot 192
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Lot n° 192
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Estimation :
5000 - 6000 EUR
Large demonstration tellurium in iron and brass, base in bla - Lot 192
Large demonstration tellurium in iron and brass, base in blackened cast iron. Counterweight for balancing the instrument. Table of months and seasons. Crank-operated mechanism showing the Earth's rotation around the Sun, simulated by a candle and reflector. The terrestrial sphere is signed Maison BERTAUX in Paris. France, late 19th century. H at reflector: 57 cm. L. 110 cm
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