|
Date: |
|
Description: | 119
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.
Focal length: 29.8". O.G.diameter: 1". Barrel cracked & bound with twine.
caption: Polygonal telescope | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Polygonal telescope Achromatic lens achromatic telescopes Shortland John | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
|
|