Collection Home > Telescopes > Multiple Draw > Five-Draw Telescope
Five-Draw Telescope
Signature | Unsigned | |||||
Date | Mid-1800s | |||||
Dimensions | English | Metric | ||||
Main Tube Length | 3.3in | 84mm | ||||
Main Tube Diameter | 1.3in | 33mm | ||||
Total Length | 11.5in | 292mm | ||||
Closed Length | 4.0in | 101mm | ||||
Objective Clear Aperture Diameter | 1.0in | 25mm | ||||
Description |
This Telescope has a round parallel brass barrel that is covered with imitation ivory. It has an extendable shade with a push-on lens cap. The objective lens is an achromatic doublet. It has five brass draws, the smallest of which is longer than the other four, an unusual construction. There is a four lens eyepiece and a flared eyecup with a swivel cover. It is not signed by the maker. |
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College of Optical Sciences
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