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Cary Seven-Draw Telescope

Signature Cary, London

Date Mid-1800s
Dimensions English Metric
Main Tube Length 5.5in 140mm
Main Tube Diameter 2.0in 52mm
Total Length 30.8in 781mm
Closed Length 6.4in 163mm
Objective Clear Aperture Diameter 1.7in 43mm


This telescope has a round parallel nickel-silver barrel, covered with baleen (a flat, flexible material, made of keratin, obtained from the jaws of baleen whales). The objective lens is an achromatic doublet with a push-on cap. It has seven nickel-silver draws, a four lens eyepiece, and a flared eyecup with a sliding cover. It is signed "Cary London" on the smallest draw, with the eyecup to the right. "Adjusting Tube" is engraved on the next to the smallest draw. Also, "J.H v Post" is engraved on the face of the eyecup.


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