A Treatise on Meteorological Instruments - Negretti & Zambra Seven Day Razor Set This rare and early example

This rare and early example is comprised of a Bakelite rectangular base with input to the front for an additional discharge wand and the manufacturer transfer to the front stating “Physica”

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

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

Henry Gregory

A Treatise on Meteorological Instruments - Negretti & Zambra Seven Day Razor Set This rare and early exampleThis 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