Collection Home > Telescopes > Monocular-Single Draw > Monocular Opera Glass
|Signature||Nairne + Blunt 20 Cornhill London|
|Main Tube Length||1.3in||34mm|
|Main Tube Diameter||1.2in||31mm|
|Objective Clear Aperture Diameter||1.0in||25mm|
This monocular has a short round parallel ivory barrel, covered with a veneer of tortoise shell. The single objective lens is non-achromatic. It has one draw, made of either silver or silver-plated brass. There is a single eye lens and a flared ivory eyecup. It is signed "NAIRNE + BLUNT 20 CORNHILL, LONDON" on the face of the ivory ring retaining the objective. It has a fish skin covered case.
College of Optical Sciences
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