Collection Home > Telescopes > Library and Tripod > Wooden Library Telescope
Wooden Library Telescope
Signature | Dollond , London | |||||
Date | circa 1800 | |||||
Number of Draws | 1 | |||||
Dimensions | English | Metric | ||||
Main Tube Length | 28.8in | 732mm | ||||
Main Tube Diameter | 2.6in | 66mm | ||||
Total Length | 40.1in | 1018mm | ||||
Closed Length | 37.9in | 962mm | ||||
Objective Clear Aperture Diameter | 2.2in | 55mm | ||||
Description |
This telescope has a round tapered mahogany barrel, painted reddish-brown. The objective lens is an achromatic doublet and has a push-on cap. It has a single brass draw with rack and pinion focusing by a thumbwheel. There are two separate eyepiece tubes, which screw into the draw: Terrestrial: It has four lenses, contained in a segmented brass tube, with a flared eyecup. Astronomical: It has a Huygens two-lens eyepiece, contained in a short brass tube. It produces an inverted image. This eyepiece also has a screw-on flared lens cup containing a sun filter. It is signed "Dollond * London" on the brass back plate of the barrel. The telescope mounts on a folding cabriole tabletop stand. |
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