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Compound achromatic microscope

Maker

NACHET

Country

France

Signature

microscope: NACHET & FILS / PARIS/ R. ST SEVERIN 17; screw micrometer eyepiece: Nachet Paris

Category

Microscopes

Optical 1

Compound

Optical 2

Achromatic

Size of the box (h x b x d)

10.8 × 16.4× 29 cm

Size of the microscope (h x b x d)

31 × 9.1 × 11.5 cm

Inventory number

SM 62

Description

In a box partly lined with red velvet. The three objective lenses in a little box partly lined with red silk. On the box an engraved brass label ‘Microscope Vétérinaire / No 61’.
This stand is mentioned in the 1886 Nachet catalogue as ‘microscope plus simple’, the most simple microscope. There is a cast horseshoe foot with a fixed brass pillar on which the simple square stage is mounted. Below the stage a rotating stop with three apertures. The concave mirror is in a bracket on a swing arm, allowing oblique illumination. Coarse adjustment is by means of a sliding body tube in a sleeve. Fine adjustment by a micrometer screw acting on the limb.
The original eyepiece is missing, instead there is a screw micrometer eyepiece.
Objectives ‘3’, ‘5’, and ‘7’, in a box marked ‘Nachet’.