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Six-Draw Silvered Brass Monocular
|Main Tube Length||.9in||22mm|
|Main Tube Diameter||1.8in||45mm|
|Objective Clear Aperture Diameter||1.6in||40mm|
This monocular has a very short, round parallel barrel made of ivory. The single objective lens in non-achromatic. It has six brass draws (silver-plated), a single eye lens, and a flat disc-shaped eyecup. It is not signed by the maker.
College of Optical Sciences
The University of Arizona, 1630 East University Boulevard, Tucson, Arizona U.S.A. 85721-0094
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