Desk Tool Made by Negretti & Zambra to Forecast Weather

Torricellian barometer of oak wood, signed Negretti & Zambra London from the second half of the 19th century, complete with reading vernier for checking the pressure variation and thermometer. Height 98 cm - 10.6 inches, width 27 cm - 38.5 inches, depth/thickness 5 cm - 1.96 inches. Very good condition, fully functional. For safety during transport the barometer will be shipped emptied of mercury. The mercury will be placed in a sealed container in the package together with the barometer. When it was discovered, that changes of atmospheric pressure are connected to changes of weather, barometers became very popular. Evangelista Torricelli...

Refractor polarimeter made of painted brass with cast iron tripod base by Steindorff & Co. Berlin D.R.P. Germany, 1920s. It is an antique instrument used to determine the concentrati...

Wooden barometer measuring instrument English manufacture made in the mid 19th century, silver-plated brass dial engraved with meteorological indicati...

Land-surveyor squaring, measuring instrument made of brass, Italian manufacture, from the second half of the 19th century, complete with original walnut box. It is a topographic inst...

Induction coil by Du Bois Reymond, also known as Sled of the Du Bois Reymond system designed around 1870 during electrophysiology studies by Emil Du Boi...

Optical microscope signed F.lli Koristka Milano n. 42870 produced between 1920/30, of chromed and black painted brass, three-magnification turret, consisting of a stand and a plate w...

19th century Negretti and Zambra Bakelite Weather Forecaster. Housed in a black metal case with a cream coloured bakelite front plate. The dial with barometer scale, hand turned indicator and a secondary dial operated by the side lever to set the wind direction...

Negretti & Zambra Fine Edwardian oak cased barograph with bevelled glass panels and central chart drawer. Ten vacuum chambers linking ...

Negretti & Zambra Fine Edwardian mahogany cased barograph with beveled glass panels and central chart drawer. Seven vacuum chambe...

Negretti & Zambra Fine Edwardian oak cased barograph with hinged lid, bevelled glass panels and central chart drawer. Seven vacuum ...

Edwardian polished oak cased barograph with bevelled glass panels. Brass base plate stamped ‘Regent, Jewelled movement supporting the ten vacuum chambers linking the ink pen pointer ...

Unusual oak-cased barograph and barometer by Negretti & Zambra, having five glazed removable lid. The mechanical eight-day movement is housed i...