The barometer is an instrument for measuring atmospheric pressure. The pressure indicated can aid in predicting short term weather.

There are two main types of barometer in use, the mercury barometer, which can either be in the form of a "stick" or a "wheel", and the aneroid barometer, a later invention and most commonly available.

Italian Evangelista Torricelli, an associate of Galileo, is generally credited with inventing the mercury barometer in 1643. Galileo suggested to Evangelista Torricelli that he use mercury in his vacuum experiments.

A mercury barometer has a glass tube with a height of at least 84 cm, closed at one end, with an open mercury-filled reservoir at the base. The weight of the mercury creates a vacuum in the top of the tube. Mercury in the tube adjusts until the weight of the mercury column balances the atmospheric force exerted on the reservoir.

At the time more...

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Victorian cased Negretti & Zambra brass pocket compensated…

Victorian Brass Barometer by Negretti & Zambra

Victorian cased Negretti & Zambra brass pocket compensated barometer with silvered dial, #8508 with another by Stanley

A brass pocket barometer by Calderoni es Tarsa, Budapest, circa…

Calderoni es Tarsa Brass Pocket Barometer

A brass pocket barometer by Calderoni es Tarsa, Budapest, circa 1900 circular brass case, the silvered signed Calderoni es Tarsa 7 cm diameter

Cased pocket barometer

Pocket Barometer in Protective Case

Cased pocket barometer

Holosteric barometer by Heath circular with ring handle, brass…

Heath Holosteric Barometer with Brass Casing and Enamel Dial

Holosteric barometer by Heath circular with ring handle, brass casing and white enamel dial 12 cm dia (glass cracked)

Very fine gilt metal pocket barometer by A&N C.O.S.L

Gilt Metal Pocket Barometer by A&N C.O.S.L

Very fine gilt metal pocket barometer by A&N C.O.S.L

Brass port hole barometer, made in West Germany

West German Brass Port Hole Barometer

Brass port hole barometer, made in West Germany

Sterling silver mounted thermometer

Silver thermometer with sterling mount

Sterling silver mounted thermometer

A free standing thermometer, manufactured by Zone, Denmark, in…

Zone Denmark Brushed Chrome Free Standing Thermometer

A free standing thermometer, manufactured by Zone, Denmark, in brushed chrome, height 113 cm

Rare English pottery hand painted thermometer

Hand-painted English pottery thermometer

Rare English pottery hand painted thermometer

Negretti & Zambra pocket barometer, #1120 with original case…

Negretti & Zambra Pocket Barometer with Case & Compass

Negretti & Zambra pocket barometer, #1120 with original case and compass

Brass ship's barometer by Schatz

Schatz Brass Ship Barometer

Brass ship's barometer by Schatz

Large timber encased barometer, length 110 cm

110 cm Timber Barometer

Large timber encased barometer, length 110 cm

Brass Gimble bracket mounted ships stick barometer

Brass Gimble Ship Barometer

Brass Gimble bracket mounted ships stick barometer

Two vintage Barometers, 1900 and after, one German, the other…

Vintage Barometers, German and Belgian

Two vintage Barometers, 1900 and after, one German, the other marked Maison du Lynx, Brussels, a circular barometer in a timber frame, the other housed in a carved oak case with a thermometer to the stem, length 58.5 cm, width 18.5 cm, and smaller

An unusual brass and metal barometer in the form of a drum on…

Drum-shaped metal barometer on stand

An unusual brass and metal barometer in the form of a drum on stand

L Balerna of Halifax wall barometer. Sheraton Revival marquetry…

Halifax Wall Barometer with Marquetry Inlaid Case

L Balerna of Halifax wall barometer. Sheraton Revival marquetry inlaid case. Height 95 cm

Vintage English wall barometer and thermometer, inlaid wood…

English Inlaid Wall Barometer & Thermometer

Vintage English wall barometer and thermometer, inlaid wood decoration. Height 73 cm

Victorian enamel faced android barometer with Ellerys…

Enamel Android Barometer in Carved Knot Frame

Victorian enamel faced android barometer with Ellerys indications in carved wooden knot frame

Early English made barometer by J. Parker & Son, 66 cm high

Antique English Barometer by J. Parker & Son

Early English made barometer by J. Parker & Son, 66 cm high

A H. B Selby & Co barometer.

H.B Selby & Co Barometer

A H. B Selby & Co barometer.

Vintage carved oak wall barometer height 80 cm, with attached…

1935 Carved Oak Wall Barometer with Engraved Plate

Vintage carved oak wall barometer height 80 cm, with attached engraved brass dedication plate, dated 1935.

Late Victorian oak circular wall barometer the dial with…

Oak Wall Barometer with Carved Border and Visible Escapement

Late Victorian oak circular wall barometer the dial with visible escapement and acorn and leaf carved border, 23.5 cm diameter

Brass barometer by Steiner of Adelaide

Steiner's Adelaide Brass Barometer

Brass barometer by Steiner of Adelaide

An unusual Art Nouveau sterling silver framed brass barometer,…

Unique Art Nouveau Sterling Silver Barometer (Chester 1904)

An unusual Art Nouveau sterling silver framed brass barometer, ring handle to the top (af) Chester 1904

A commemorative Arctic and Antarctica expeditions Adie Tendency…

James Clark Ross Antarctica Expedition 1839 Commemorative Tendency Thermometer

A commemorative Arctic and Antarctica expeditions Adie Tendency barometer thermometer, The James Clark Ross (1800-1862) Antarctica Expedition 1839, with historical notes, produced by Nauticalia, 44 cm high, 14 cm wide

A vintage oak cased barometer, made in England, height 58 cm,…

English-made Vintage Oak Barometer, 58cm Height

A vintage oak cased barometer, made in England, height 58 cm, width 19.5 cm

English oak barometer and thermometer. Height 65 cm

English Oak Barometer & Thermometer - 65cm Height

English oak barometer and thermometer. Height 65 cm

Vintage Short & Mason brass cased barometer, marked to dial for…

Vintage Short & Mason Brass Barometer

Vintage Short & Mason brass cased barometer, marked to dial for Short and Mason, London # 10576/39, brass cased, marked 'Mark1,' verso, diameter 12 cm

Victorian hand carved walnut pocket thermometer, slide to stand…

Victorian Walnut Pocket Thermometer: Slide-to-Stand Action, 7cm Length

Victorian hand carved walnut pocket thermometer, slide to stand action 7 cm length

Victorian bronzed brass prismatic pocket barometer, the green…

Victorian Pocket Barometer in Fitted Case

Victorian bronzed brass prismatic pocket barometer, the green card dial stamped Troughton & Simms, London in original fitted Burgundy morocco case

Ornate ormolu mounted thermometer

Ornate ormolu thermometer

Ornate ormolu mounted thermometer

Quality Oak 'Rope' framed barometer

Oak Rope Barometer

Quality Oak 'Rope' framed barometer

Antique 'Syke's Hydrometer' in mahogany case and an Italian…

Antique Hydrometer and Thermometer Set

Antique 'Syke's Hydrometer' in mahogany case and an Italian brass thermometer

A glass novelty thermometer 44 cm high

44cm Glass Novelty Thermometer

A glass novelty thermometer 44 cm high

Antique German Art Nouveau inlaid barometer, approx 45 cm high,…

German Art Nouveau Inlaid Barometer - Antique

Antique German Art Nouveau inlaid barometer, approx 45 cm high, 19 cm wide

Brass cased Negretti & Zambra Compensated barometer with…

Negretti & Zambra Barometer with Silverised Dial, #20160

Brass cased Negretti & Zambra Compensated barometer with silverised dial, number 20160, 12.5 cm dia.

Antique inlaid mahogany barometer, approx 60 cm high

Mahogany Inlaid Barometer - Antique - 60 cm High

Antique inlaid mahogany barometer, approx 60 cm high

Antique oak cased barometer with thermometer 74.5 cm high

Antique Oak Barometer with Thermometer - 74.5 cm High

Antique oak cased barometer with thermometer 74.5 cm high

Victorian glass thermometer, height 14 cm

Victorian Glass Thermometer - 14cm Height

Victorian glass thermometer, height 14 cm

Victorian rosewood tea caddy oblong shape with mother of pearl…

Victorian Rosewood Tea Caddy & Barometer Set

Victorian rosewood tea caddy oblong shape with mother of pearl roundel to the lid, 2 division interior, lacking lids, (cracks and small chips to rear corners), 20 cm width, together with small circular barometer with ceramic dial, 9 cm diameter.

A Negretti & Lambral brass cased barometer with carved oak stand

Brass Barometer with Oak Stand

A Negretti & Lambral brass cased barometer with carved oak stand

A modern design glass thermometer, in swirl form. Height 18 cm.

Swirl Glass Thermometer - Modern Design, 18 cm Height

A modern design glass thermometer, in swirl form. Height 18 cm.

Vintage English Fattorini wall barometer marked for Thomas…

Vintage Fattorini Wall Barometer with Thermometer

Vintage English Fattorini wall barometer marked for Thomas Fattorini Skipton Ltd, barometer, cracks to glass dial, with thermometer, on carved wood base, for wall hanging, height 82 cm.

Vintage John Wardale, London brass cased barometer, Compensated…

John Wardale London Brass Barometer

Vintage John Wardale, London brass cased barometer, Compensated Barometer, marked for John Wardale, London, # 1645/1916, brass cased, diameter 11.5 cm

Large oak framed barometer by Drummond of Melbourne (dial A/F)

Drummond's Melbourne Oak Barometer (A/F Dial)

Large oak framed barometer by Drummond of Melbourne (dial A/F)

Vintage Sikes Hydrometer in original case, lacks thermometer

Vintage Sikes Hydrometer in Original Case (No Thermometer)

Vintage Sikes Hydrometer in original case, lacks thermometer

Chandelier thermometer by Taylor Bros Rochester Ny indicates…

3-Sided Chandelier Thermometer by Taylor Bros Rochester NY

Chandelier thermometer by Taylor Bros Rochester Ny indicates the temperature using red alcohol & can be viewed from 3 sides. Has a 15 cm chain. Height 20 cm, diameter approx 4 cm

A A. E. Cole and Son English wall barometer, timber cased with…

English Satinwood Inlaid Wall Barometer by A.E. Cole & Son

A A. E. Cole and Son English wall barometer, timber cased with satinwood inlay.

A West Germany brass barometer, thermometer and hygrometer…

German Brass Weather Station with Italian Craftsmanship

A West Germany brass barometer, thermometer and hygrometer brass made in Italy.

A 1950's figural ceramic thermometer.

1950s Ceramic Figural Thermometer

A 1950's figural ceramic thermometer.

Victorian obelisk form crystal thermometer in obelisk form on…

Crystal Obelisk Thermometer on Square Base

Victorian obelisk form crystal thermometer in obelisk form on square base. Height 17 cm

West German wall barometer, 70 cm tall approx

70 cm West German Wall Barometer

West German wall barometer, 70 cm tall approx

Serpentine stone lighthouse thermometer

Serpentine Lighthouse Thermometer

Serpentine stone lighthouse thermometer

English Barometer, approx 29 cm high, 29 cm wide

English Barometer: Classic Design for Accurate Weather Forecasting

English Barometer, approx 29 cm high, 29 cm wide

Antique onyx figural thermometer, with winged putto to top,…

Antique Onyx Figural Thermometer with Winged Putto

Antique onyx figural thermometer, with winged putto to top, approx. 37 cm high

Antique blue glass obelisk form table thermometer, with mercury…

Blue Glass Obelisk Table Thermometer

Antique blue glass obelisk form table thermometer, with mercury thermometer intact, height 12.5 cm

Antique cast metal with ceramic face barometer, width 16 cm…

Antique Ceramic-Faced Barometer with Cast Metal Frame

Antique cast metal with ceramic face barometer, width 16 cm approx

Small Black Forest barometer

Mini Black Forest Barometer

Small Black Forest barometer

English carved wood backed wall barometer dial marked 'British…

Carved Wood British Made Wall Barometer with 14cm Dial

English carved wood backed wall barometer dial marked 'British Made,' to carved wood backed wall barometer, diameter 14 cm, dial.

Vintage wood framed wall barometer figured wood circular framed…

Vintage Wood Barometer with Thermometer

Vintage wood framed wall barometer figured wood circular framed barometer, central dial, with thermometer to lower border, diameter 23 cm

Antique oak case barometer 86 cm high approx. Small loss to…

Antique Oak Barometer with Frame Damage

Antique oak case barometer 86 cm high approx. Small loss to frame

A Continental porcelain figural thermometer, on cast iron base.…

Continental Porcelain Figural Thermometer on Cast Iron Base

A Continental porcelain figural thermometer, on cast iron base. Height 35 cm.

Vintage English wood framed wall barometer dial marked for…

Vintage English wood framed wall barometer dial marked for 'Regent,' England, with thermometer to upper level, in decorated carved wood wall frame, height 58 cm

A barometer, on carved wooden body. Height 54 cm.

Carved Wooden Barometer - 54cm Height

A barometer, on carved wooden body. Height 54 cm.

Dutch wood framed wall barometer circular wood framed Dutch…

Dutch Wood Barometer - Circular Frame, 17cm Diameter

Dutch wood framed wall barometer circular wood framed Dutch language termed barometer, (diameter 17 cm approx).

Antique barometer thermometer set in timber housing, 21.8 cm…

Antique Barometer-Thermometer in Timber Housing

Antique barometer thermometer set in timber housing, 21.8 cm high

Galileo thermometer, 34 cm high approx.

34 cm Galileo Thermometer

Galileo thermometer, 34 cm high approx.

Galileo thermometer 34 cm high approx

34 cm Galileo Thermometer

Galileo thermometer 34 cm high approx

A German timber and brass barometer, height 37 cm

German Timber and Brass Barometer (37 cm)

A German timber and brass barometer, height 37 cm

A carved timber wall barometer, height 47 cm

Carved Timber Wall Barometer - 47 cm Height

A carved timber wall barometer, height 47 cm

Vintage English barometer by Smiths, height 18 cm approx.

Smiths Vintage English Barometer - 18cm Height

Vintage English barometer by Smiths, height 18 cm approx.

Victorian wood cased thermometer in fitted wood case, with…

Davis/Leeds Victorian Thermometer in Fitted Wood Case

Victorian wood cased thermometer in fitted wood case, with calibrated metal plate indicating degrees in fahrenheit and reaumur, marked for Davis/Leeds, length 13 cm case

Antique brass shot mould, padlock and thermometer

Antique Brass Shot Mould, Padlock & Thermometer Set

Antique brass shot mould, padlock and thermometer

Reproduction thermometer 'Harvest Moon'

'Harvest Moon' Reproduction Thermometer

Reproduction thermometer 'Harvest Moon'

English Smiths wall barometer, of square form, with chromed…

English Square Wall Barometer with Chrome Mounts

English Smiths wall barometer, of square form, with chromed mounts, height 18 cm