Collection Home > Telescopes >Monocular Single-Draw > Ramsden Shagreen Opera Glass
Ramsden Shagreen Monocular
Signature | Ramsden, London | |||||
Date | Circa 1770 | |||||
Number of Draws | 1 | |||||
Dimensions | English | Metric | ||||
Main Tube Length | 2.2in | 55mm | ||||
Main Tube Diameter | 1.8in | 45mm | ||||
Total Length | 4.1in | 105mm | ||||
Closed Length | 2.9in | 73mm | ||||
Objective Clear Aperture Diameter | 1.6in | 40mm | ||||
Accessories |
Red Leather Case | |||||
Description |
This monocular has a short round parallel cardboard barrel, covered with shagreen. The objective is contained in a brass cell and is a single non-achromatic lens (possibly a replacement). It has one cardboard draw, covered in red leather with tooled on silver-colored floral designs. The single eye lens, which is cracked, is mounted in a flared eyecup made of a material which could be ivory painted or colored black. The two black rings at either end of the barrel are made of this same material. It is signed "RAMSDEN LONDON" on the draw, with the eyecup to the right. It comes with a red leather-covered cardboard or wood case. |
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