Claude Siméon PASSEMANT (1702-1769)

Lot 55
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Estimation :
5000 - 7000 EUR
Claude Siméon PASSEMANT (1702-1769)
Reflection telescope in bronze and gilded brass. Folding tripod stand. Black grief-covered body. Optical and eyepiece protectors. Signed around the eyepiece: Passemant, King's engineer at the Louvre. Paris. Total length of the tube 40.64 cm. Very nice copy of the 16-inch telescope by Claude Passemant described in his book "Construction d'un télescopcope de réflexion de 16 pouces". Claude-Siméon PASSEMANT (1702-1769) was an engineer, optician, astronomer and watchmaker. He designed an astronomical clock indicating real time, date, mean time, moon phases and the movement of the planets according to Copernicus, which Louis XV acquired and had placed in 1754 in the Cabinet des Pendules of the Château de Versailles where it still stands today.
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