A scarce terrestrial or surveying quadrant by Dubois, circa 1760
€1,500
Circa
1760
Country of manufacture
France
Description
A rare terrestrial or surveying quadrant with both telescopes used in horizontal plan. The instrument is signed “Dubois à Paris” so datable from the 1760s’.
The instrument is divided from 0 to 90 degrees.
The instrument is divided from 0 to 90 degrees.
It is mounted on its original stand. It incorporates several micrometric screws for fine adjustments.
A rare portable and diminutive form for the surveying uses of the larger vertical astronomical quadrant.
A rare portable and diminutive form for the surveying uses of the larger vertical astronomical quadrant.
Telescopes measures 21,5 cm length, 22,5cm width and 18cm height.
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Dealer information
Le Zograscope
Established by Alexandre Piffault in 2014 and based in Paris at 5 rue de Condé, 75006, very close to Odéon, Le Zograscope specializes in antique and rare books in Science, Medicine and Technology, and rare antique instruments in the same fields. We have especially a strong interest in early and continental microscopy, early and special mathematical/drawing instruments, medical and surgical instrument, and rare technology.
Personnal website : https://www.lezograscope.com/
