Pocket telescope
The tapering barrel of this achromatic telescope is covered in leather. There are two brass draw tubes and brass fittings, including a pivoted eyepiece cover. There are also two lens covers which are attached to the barrel with a carrying strap. The maker's name is inscribed on the smaller draw tube as 'Troughton & Simmns London.' The number II has also been roughly inscribed in a number of places, presumably during production. There is also an engraved stop line on the larger draw tube.
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Object Details
ID: | ZBA1207 |
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Collection: | Astronomical and navigational instruments |
Type: | Pocket telescope |
Display location: | Not on display |
Creator: | Unknown; Troughton & Simms |
Date made: | circa 1830 |
People: | Airy, George Biddell |
Credit: | National Maritime Museum, Greenwich, London, Airy Collection |
Measurements: | Length: 179 mm (closed); 416 mm (fully extended); Diameter: 35-47 mm (barrel) |
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