The University of Arizona
College of Optical Sciences

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Small Binocular Opera Glass

Signature Lumina,  Paris

Date  Late 1800s
Dimensions English Metric
Total Length 1.8in 46mm
Closed Length 1.3in 34mm
Inter-Pupilary Distance 2.7in 69mm
Objective Clear Aperture Diameter 0.6in 16mm


This small pair of Galilean Opera Glasses has a gold-toned brass housing.  The barrels are decorated with a patterned purple enamel.  The name "Lumina" is engraved on one arm of the frame.  Focusing is achieved with a central thumbwheel.


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