A superb 18th Century burr walnut mercury barometer by Stevan Ronket in Amsterdam.

A barometer. High 115 cm. Wide 23 cm. Exquisitely made from burr walnut. With two pewter scales, the upper with a mercury filled indicator and signed S.Ronket Amsteldam. With an adjustable hand on the right. In Dutch the different temperatures ranging from hot to freezing cold. Up above inches, left Dutch and right English. Lower down a second scale indicating temperature. This one signed: "Stevanus Ronket Fecit Amstelodam" On the left a Celcius scale and Fahrenheit on the right. The barometer is in mint condition and working. It resembles the barometers by Paulus Wast which can be dated around 1750.