An Gregorian Reflection Telescope Signed Navarre In Paris C.1750
Reflection telescope mounted on brass base, signed “Navarre A Paris”. Both mirrors are in good condition, The telescope has a brass with leather objective tube, (l18 cm, Ø 5 cm), with main mirror ( Ø 4,1 cm), second mirror ( Ø 1,1 cm) dust cap. Two compound oculars (l 6 cm, Ø 2 cm) are available with a dust cap. Supported by a bracket above a universal ball joint on a turned brass base with the oppertunity to remove the base and screw the telescope on a wooden stick. Navarre was Ordinary Engineer in instruments of physics and mathematics privileged of Monseigneur the Duke of Burgundy (Grand eldest son of Louis XIV). Pupil of Dom Noel (signature on a small telescope ). He worked with him on the construction of a large telescope financed by Louis XV. Navarre specialized in the manufacture of Gregorian telescopes, he presented several at the Academy in 1769 and 1778.
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Van Leest Antiques, based in Utrecht in the Netherlands, specialises in antique scientific and medical instruments. Their collection covers mainly scientific and medical antique instruments: barometers, globes and planataria, nautical instruments, anatomical models, and pharmacy items. Toon Van Leest travels regularly in Europe and visits trade fairs, auctions, and antique dealers to collect stock and to find pieces to fulfil his clients' unusual requests.
As well as being an avid antique collector and dealer, Toon Van Leest is also a dentist. He believes that antiques are a stable investment, not reliant on trends or fashion, and have truly lasting value. Above all, he says, antiques are timeless and never lose their beauty.