Double Bedspread Flax Italy XX Century

Stanley London Geodesy Graphometer With Compass London 20th Century

19th Century / 1801 - 1900

Brass geodesy graphometer, signed "Stanley London", with compass whose bottom is engraved with a compass rose indicating the 4 cardinal points and a broken bubble level. It has an inverted double diopter, as a goal for the fixed reference point, in the lower part. Another movable diopter with reading nonius in the fixed goniometer, the latter having a scale from 0 to 180° and from 180° to 0, indicated from 10° to 10°, semi-circular shape. Contained in a walnut box.