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Binocular Opera Glass
|Signature||La Favorite, Paris|
|Main Tube Length||1.6in||40mm|
|Main Tube Diameter||1.3in||33mm|
|Objective Clear Aperture Diameter||0.9in||23mm|
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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