An 18th-Century monocular,

细节
An 18th-Century monocular,
signed on the green-stained vellum draw-tube H. PYEFINCH LONDON, the draw-tube further decorated with scrolls and flowers in silver, and with markings for the extent of the draw-tube, with shagreen outer body-tube, lacquered-brass mounts, screw-on cap for the 1in. (3.2cm.) diameter object glass and eyepiece dust cap -- 5in. (12.7cm.) long extended

See Colour Illustration and Detail