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Binocular Opera Glass

Signature La Favorite, Paris

Date Mid 1800s
Dimensions English Metric
Main Tube Length 1.6in 40mm
Main Tube Diameter 1.3in 33mm
Total Length 2.4in 60mm
Closed Length 2.1in 53mm
Inter-Pupilary Distance 2.5in 64mm
Objective Clear Aperture Diameter 0.9in 23mm

Description

This pair of opera glasses has curved tapering brass barrels, covered with panels of white mother-of-pearl.  The objective lenses are achromatic doublets, contained in brass cells.  It has brass tubes, single eyepiece lenses, and flared mother-of-pearl eyecups.  The brass frame and other metal parts are gold-plated.  Focusing is done with a central thumbwheel.  "La Favorite   Paris" is inscribed on the face of both eyecups.  This name is not listed in the Webster database of makers.  A fitted leather carrying case is included.

 


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