Polygonal telescope
The octagonal barrel of this achromatic telescope is made of mahogany and is slightly tapered. It has a single brass draw tube and brass fittings, including a sliding eyepiece cover. The objective lens cap is missing. The maker’s name appears on the draw tube as ‘Dollond / London’.
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Object Details
ID: | NAV1639 |
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Collection: | Astronomical and navigational instruments |
Type: | Polygonal telescope |
Display location: | Not on display |
Creator: | Dollond & Aitchison |
Date made: | circa 1770 |
Credit: | National Maritime Museum, Greenwich, London |
Measurements: | Overall: 648 mm; Diameter: 35 mm x .5 kg |
Parts: | Polygonal telescope |
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