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Day or night telescope
This achromatic telescope has a wooden barrel and three brass draw tubes. The other brass fittings include a sliding eyepiece cover, of which the slide is missing. The objective lens cap is also missing.
The maker's name is engraved on the smallest draw tube as 'G Dixey London', referring to George Dixey, who is known to have been trading from 1809. The words 'Day or Night' are inscribed on the same draw tube, indicating that the telescope was designed for use in all light conditions and, therefore, has a relatively large objective lens. In addition, the numeral ‘IIII’ is roughly engraved on each of the draw tubes, presumably as part of the manufacturing and assembly process.
The telescope is believed to have belonged to Captain Cooper (died 1819) of the East India Company, who served in the 'Brunswick' and 'Atlas'.
The maker's name is engraved on the smallest draw tube as 'G Dixey London', referring to George Dixey, who is known to have been trading from 1809. The words 'Day or Night' are inscribed on the same draw tube, indicating that the telescope was designed for use in all light conditions and, therefore, has a relatively large objective lens. In addition, the numeral ‘IIII’ is roughly engraved on each of the draw tubes, presumably as part of the manufacturing and assembly process.
The telescope is believed to have belonged to Captain Cooper (died 1819) of the East India Company, who served in the 'Brunswick' and 'Atlas'.
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Object Details
| ID: | NAV1640 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | Day or night telescope |
| Display location: | Not on display |
| Creator: | Dixey, George |
| Date made: | circa 1815 |
| People: | Cooper, Capt |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Length: 284 mm (closed), 835 mm (fully extended); Diameter: 65 mm (barrel) |