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Polygonal telescope
This achromatic telescope has an eleven-sided mahogany barrel and a single brass draw tube. There is no mechanical stop for the draw tube. The other brass fittings include a sliding eyepiece cover (now bent). The objective lens cap is missing.
The telescope once belonged to Captain John Shortland, who commanded the captured French frigate HMS ‘Junon’, which was re-taken by the French in 1809. Shortland died off Guadaloupe in 1810.
The telescope once belonged to Captain John Shortland, who commanded the captured French frigate HMS ‘Junon’, which was re-taken by the French in 1809. Shortland died off Guadaloupe in 1810.
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Object Details
| ID: | NAV1646 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | Polygonal telescope |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | circa 1780 |
| People: | Shortland, John |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 665 mm; Diameter: 45 mm |