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Description: | This achromatic telescope has a tapering decagonal mahogany barrel and a single brass draw tube. The brass fittings include sliding objective and eyepiece lens covers. There is no mechanical stop for the draw tube, so it is free to pull right out of the barrel.
AUDIT - item needs marking with its identity number. Focal length: 40". O.G.diameter: 1.3".
caption: Polygonal telescope | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Polygonal telescope Achromatic lens achromatic telescopes | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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