Collection Home > Telescopes > Single-Draw > Single-Draw Telescope
Other Ross Instruments
|Main Tube Length||16.8in||425mm|
|Main Tube Diameter||1.5in||37mm|
|Objective Clear Aperture Diameter||1.2in||30mm|
This telescope has a round parallel nickel silver (copper, nickel, and zinc alloy) barrel, wrapped with line and tape, painted black. This covering appears to be a replacement. It has an extendable shade, made to take a push-on lens cap, which is missing. A rope "Turk's Head" knot has been added to the shade. The objective lens is an achromatic doublet. It has one draw, a four lens eyepiece, and a flared eyecup with a sliding cover, missing its small pin. It is signed "Ross London" on the draw, 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
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