|
|
|
|
|
|
|
|
Collection Home > Telescopes > Multiple Draw > Two-Draw Telescope
Two-Draw Telescope
| Signature | Parnell, Maker, London/ Day or Night |
|
||||
| Date | circa 1800 | |||||
| Dimensions | English | Metric | ||||
| Main Tube Length | 13.6in | 346mm | ||||
| Main Tube Diameter | 2.5in | 63mm | ||||
| Total Length | 35.0in | 889mm | ||||
| Closed Length | 14.8in | 376mm | ||||
| Objective Clear Aperture Diameter | 1.5in | 39mm | ||||
|
Description |
This telescope has a round parallel mahogany barrel. The push-on cover and slide for the objective lens are missing. The objective is an achromatic doublet. It has two brass draws, a four lens eyepiece, and a tapered eyecup with a sliding cover. It is signed "Parnell, MAKER London DAY, or, NIGHT" on the eyepiece tube, with the eyecup to the right. | |||||
|
|
|||||
College of Optical Sciences
The University of Arizona, 1630 East University Boulevard, Tucson, Arizona
U.S.A. 85721-0094
All contents copyright © 2008 Arizona Board of Regents.
