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Collection Home > Telescopes > Monocular-Single Draw > Monocular Opera Glass
Monocular Opera Glass
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| Date | Early 1800s | |||||
| Dimensions | English | Metric | ||||
| Main Tube Length | 1.9in | 48mm | ||||
| Main Tube Diameter | 1.6in | 41mm | ||||
| Total Length | 3.5in | 90mm | ||||
| Closed Length | 2.5in | 64mm | ||||
| Objective Clear Aperture Diameter | 1.2in | 30mm | ||||
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Description |
This monocular has a short round bell-shaped barrel, made of ivory. The objective lens is an achromatic doublet, contained in an ivory-covered brass cell. It has one gold-plated brass draw, a single eye lens, and a flared ivory eyecup. It is not signed by the maker. |
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