A rare 18th Century reflecting concave mirror, unsigned, with mahogany frame (split), located to tripod by twin nuts, on reproduction cast bronze tripod, the mirror - 17½in.(45cm)diam.

细节

A rare 18th Century reflecting concave mirror, unsigned, with mahogany frame (split), located to tripod by twin nuts, on reproduction cast bronze tripod, the mirror - 17½in.(45cm)diam.

拍品专文

The 1769 George Adams catalogue of Mathematical, Philofophical and Optical INSTRUMENTS list concave and convex mirrors, on sale from 7s. 6d ------ (26 0 0