Collection Home > Telescopes > Monocular-Single Draw > Monocular Opera Glass
Monocular Opera Glass
Signature | haring Palais Royal 63 a Paris | |||||
Date | Early 1800s | |||||
Dimensions | English | Metric | ||||
Main Tube Length | 2.2in | 56mm | ||||
Main Tube Diameter | 2.0in | 50mm | ||||
Total Length | 3.7in | 93mm | ||||
Closed Length | 2.9in | 74mm | ||||
Objective Clear Aperture Diameter | 1.5in | 38mm | ||||
Description |
This monocular has a short round bell-shaped barrel, made of painted or colored ivory. The objective lens is an achromatic doublet and is contained in a brass cell. It has one brass draw (without retention), a single eye lens (chipped), and a flared brass eyecup. All the brass parts are silver-plated. It is signed "haring Palais Royal No. 63 a Paris" on the draw, with the eyecup above. |
|||||
|
|
College of Optical Sciences
The University of Arizona, 1630 East University Boulevard, Tucson, Arizona
U.S.A. 85721-0094
All contents copyright © 2008 Arizona Board of Regents.