A very rare 18th century French surveying plain table made in brass and wood
€1,200
Circa
18th century
Country of manufacture
France
Description
A quite rare example of plane or plain table, known as a planchette, with four sights, two of which are movable, mounted on a rotating alidade.
The instrument is made of walnut and brass. The large brass circle is divided into two 360th degrees, then every degree and half-degree.
An off-center compass is equipped with an arrow-shaped needle.
Despite the ball joint is missing, a rare and unsual model of a surveying circle.
24 cm in diameter. Condition is excellent.
Ask the Dealer
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/
