|
|
|
|
|
|
|
|
Collection Home > Telescopes > Multiple Draw > Three-Draw Telescope
Three-Draw Telescope
| Signature | Ramsden, London | |||||
| Date | Late 1700s | |||||
| Dimensions | English | Metric | ||||
| Main Tube Length | 4.9in | 124mm | ||||
| Main Tube Diameter | 1.5in | 37mm | ||||
| Total Length | 13.1in | 333mm | ||||
| Closed Length | 5.2in | 132mm | ||||
| Objective Clear Aperture Diameter | 1.3in | 33mm | ||||
|
Description |
This telescope has a parallel mahogany barrel. The objective lens appears to be a replacement. It has three brass draws, each of which has had repairs. The segmented eye tube is missing one lens and may be missing a brass segment. The flared eyecup has a seized swivel cover. The largest draw is signed "Ramsden, London" with the eye tube to the left. |
|||||
|
|
|||||
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.