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Galilean Monocular

Signature Nairne + Blunt 20 Cornhill London

Date Circa 1780
Dimensions English Metric
Main Tube Length 1.3in 34mm
Main Tube Diameter 1.2in 31mm
Total Length 2.4in 62mm
Closed Length 1.9in 48mm
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.


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