Shagreen Four-Draw Monocular

Signature

Date

Late 1800s

Dimensions

English

Metric

Main Tube Length

2.1in

5.4mm

Main Tube Diameter

1.3in

34mm

Total Length

7.4in

188mm

Closed Length

2.7in

68mm

Objective Clear Aperture Diameter

1.0in

26mm

Description

This small Galilean telescope has a round parallel brass barrel, covered in shagreen. It has four brass draws and a flared eyecup. The objective lens is non-achromatic. It is not signed by the maker.

College of Optical Sciences
The University of Arizona, 1630 East University Boulevard, Tucson, Arizona U.S.A. 85721-0094