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Early Italian Telescope

Signature  

Date Early 1700s
Dimensions English Metric
Main Tube Length 10.5in 267mm
Main Tube Diameter 1.5in 37mm
Total Length 32.0in 813mm
Closed Length 12.3in 313mm
Objective Clear Aperture Diameter 0.6in 15mm

Description

This telescope has a round parallel cardboard barrel, covered in hand-painted red leather or paper with fruit-plant and floral designs. The single objective lens is non-achromatic. The objective lens cell and screw-on cap are made of turned horn. It has three cardboard draws, covered in vellum, with hand-painted floral and geometric designs. None of the draws have retention. The first and second draws have protective rings of horn on their ocular ends, but the ring on the barrel is missing. The three lens eyepiece system is contained in the smallest draw, at the end of which is a horn ocular extension. It is not signed by the maker.

 

 


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