Dollond spyglass with two-lens eyepiece and achromatic objective, circa 1780

Dollond spyglass with two-lens eyepiece and achromatic objective, circa 1780

€450

Circa

1780

Country of manufacture

UK and Ireland

Categories: Telescopes, Telescopes - Other

Description

A small telescope or spyglass, signed “Dollond London”, circa 1780.

This telescope has is equipped with two objective lenses giving different power magnifications. The objective lens is achromatic.

The tube is marked “1” and “2” depending on the lens used.

The brass is scratched and has lost much of its original lacker but the optics work perfectly.

The small telescope preserveds its screw cap.

11cm folded and 4.5cm in diameter.

 

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FR 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/

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