An 18th Century brass 2½inch refracting telescope, signed on the body tube Ramsden London, with rack and pinion focusing, dust cap, the body tube 25 inch long, located to tripod, with compass joint, on tapered pillar, with shaped cabriole legs, steadying arm with rack and pinion focusing, in fitted mahogany case with accessories - 30½in.(77.5cm)wide

細節
An 18th Century brass 2½inch refracting telescope, signed on the body tube Ramsden London, with rack and pinion focusing, dust cap, the body tube 25 inch long, located to tripod, with compass joint, on tapered pillar, with shaped cabriole legs, steadying arm with rack and pinion focusing, in fitted mahogany case with accessories - 30½in.(77.5cm)wide
See Colour Illustration

拍品專文

Jesse Ramsden b.1731-d.1800 was one of the most important of the 18th Century instrument makers. He gained experiance working for Sisson, Adams, Nairne and Dollond. After his death the business was continued by Matthew Berge