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Description: | This non-achromatic telescope has three draw tubes. The vellum barrel has been dyed with a red and green mottled pattern and is further decorated with gold-tooled motifs. The other fittings are of turned wood. The ring around the largest draw tube appears to be of the same diameter as the barrel, which is a feature of telescopes made before about 1660.
The screw-on caps for the eyepiece and objective lenses are both missing, and the objective lens appears to be a modern replacement.
The relatively short length of the telescope when in use suggests that it was meant for terrestrial rather than astronomical use.
Focal length; 20.5".O.G.diameter; 0.6".
caption: Pocketl telescope - overall | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Vellum telescopes | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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