Collection Home > Telescopes > Monocular Multiple-Draw > Four-Draw Brass Opera Glass
Four-Draw Brass Monocular
|Number of Draws||4|
|Main Tube Length||1.0in||26mm|
|Main Tube Diameter||1.7in||43mm|
|Objective Clear Aperture Diameter||1.4in||35mm|
This monocular has a short round parallel barrel, covered with a textured band of gold-colored metal. The objective is an achromatic doublet. It has four brass draws (lightly gold-plated). It is likely that there were originally six draws. The single eye lens is a replacement and appears to have been mounted in the back end of the fourth draw. The eyecup is missing. It is not signed by the maker.
College of Optical Sciences
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