A Treatise on Meteorological Instruments - Negretti & Zambra Seven Day Razor Set the trademark now rests under

the trademark now rests under the ownership of Carlsberg Breweries

This large wall barometer is 65cms high and 50cms wide

Henry Gregory

The case comes with a working lock and key and has a brass inlaid cartouche to the top on which the owner’s name

The company continued its association with royalty and went on to win a Great Exhibition Medal in 1851

A Treatise on Meteorological Instruments - Negretti & Zambra Seven Day Razor Set the trademark now rests underThis treatise on meteorological instruments was first published in 1864 by the partnership of Henry Negretti and Joseph Zambra, meteorological instrument makers to Queen Victoria, and describes the method of construction, scientific principles and practical uses of barometers, thermometers, hygrometers, rain gauges, anemometers, electrometers, ozonometers and other meteorological instruments. The instruments are fully described, with the help of