The University of Arizona
College of Optical Sciences

Collection Home > Telescopes > Monocular Multiple-Draw > Ivory Opera Glass


Ivory Monocular

Signature Jecker, Paris

Date Early 1800s
Number of Draws 2
Dimensions English Metric
Main Tube Length 1.7in 43mm
Main Tube Diameter 2.2in 55mm
Total Length 4.3in 110mm
Closed Length 2.4in 62mm
Objective Clear Aperture Diameter 1.5in 38mm


This monocular has a short, round bulbous-shaped ivory barrel.  The objective is a single non-achromatic lens that may have been replaced.  It has three brass draws, a single eye lens, and a flared eyecup.  It is signed "JECKER   PARIS" on the face of the eyecup.




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