Original U.S. WWII Navy Marked Brass Compensated Aneroid Barometer by Short & Mason of London Brunswick Guns Although over 12

Although over 12

OF- 148137

On the night of 18/19 November

England Gun Maker to the Crown who started business in 1745

marked with "N" in a triangle

Original U.S. WWII Navy Marked Brass Compensated Aneroid Barometer by Short & Mason of London Brunswick Guns Although over 12Original Item: Only One Available. A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries. An aneroid barometer is an instrument used for measuring air pressure as a method that does not involve