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Collection Home > Telescopes > Monocular Multiple-Draw > French Opera Glass
French Monocular
| Signature | Cauchoix Quai Voltaire a Paris |
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| Date | Early 1800s | |||||
| Number of Draws | 2 | |||||
| Dimensions | English | Metric | ||||
| Main Tube Length | 1.3in | 33mm | ||||
| Main Tube Diameter | 1.4in | 35mm | ||||
| Total Length | 2.8in | 72mm | ||||
| Closed Length | 1.6in | 41mm | ||||
| Objective Clear Aperture Diameter | 1.1in | 27mm | ||||
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Description |
This monocular has a short round bell-shaped ivory barrel. The objective is an achromatic doublet. It has two draws, a single eye lens, and a flared eyecup. All the metal parts are brass, lightly gold-plated. It is signed "Cauchoix Quai Voltaire á Paris" |
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