Lot Essay
The tooling on the vellum is similar to that found on a telescope by Guillame Menard in the Willach collection, suggesting a probable place of manufacture in Paris, circa 1700.
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CIRCA 1700
Details
A FRENCH PROSPECT GLASS
circa 1700
the Galilean optics housed in body tube bound in green vellum with gilt tooling, focus line marked with ink, the dust-caps and outer binding a simulated fishskin leather
5in. (13cm.) long closed
circa 1700
the Galilean optics housed in body tube bound in green vellum with gilt tooling, focus line marked with ink, the dust-caps and outer binding a simulated fishskin leather
5in. (13cm.) long closed
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