Reflection Telescope Signed Navarre In Paris C.1750

Reflection telescope mounted on tripod folding foot, signed Navarre in Paris. Both mirrors are in good condition. The focus of the small mirror is achieved by a wheel mounted on a worm. Navarre was Ordinary Engineer in instruments of physics and mathematics privileged of Monseigneur the Duke of Burgundy (Grand eldest son of Louis XIV) Navarre specialized in the manufacture of Gregorian telescopes, he presented several at the Academy in 1769