How do I read a stick barometer?

A stick barometer displays atmospheric pressure through the height of a mercury column against a graduated scale. Observers read the current pressure by noting the position of the meniscus and comparing it with the vernier scale. Many Georgian and Victorian stick barometers include vernier adjustments operated by an external key or knob. These allowed users to align the marker precisely with the top of the mercury column for accurate readings.

Were these instruments made for travel?

Numerous scientific instruments, including compasses, sundials, and microscopes, were manufactured specifically for field use by surveyors and explorers. These portable versions were secured inside fitted mahogany cases to withstand transport. Larger barometers and barographs were generally intended for fixed domestic or office placement on walls or tables. Their wooden housings prioritized display alongside protection for the delicate internal mechanisms.

How do I identify the period of an instrument?

The period is often identified through the style of the mahogany cabinetry, the typography on the paper scales, and the signature of the maker or retailer engraved on the brass plate. Georgian instruments tend to feature clean lines and silvered brass plates, while Victorian examples often incorporate heavier mouldings. Makers frequently signed their work directly onto the dials or optical tubes. Cross-referencing these signatures with known working dates helps narrow the manufacturing window.

How should I care for a mahogany instrument?

Maintenance involves keeping the wooden cabinet away from direct heat sources and sudden humidity changes to prevent timber warping or cracking. The mahogany exterior benefits from occasional light waxing to preserve the finish. Glass and brass components require gentle dusting with a soft cloth without the use of harsh chemical cleaners. Preserving original paper labels and thermometer scales inside the case is essential for maintaining the historical integrity of the piece.

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Mahogany Scientific Instrument

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A mahogany scientific instrument brings precision engineering into domestic spaces, combining utility with fine cabinetmaking.

A George III Period Mahogany Stick Barometer

18th century

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A George III Period Mahogany Stick Barometer

From Christian Davies Antiques Ltd

£195

FOR SALE

barometers

19th century

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Superb 19th Century Microscope Slide Cabinet and 280 Slides

From Hansord Antiques

£2,950

FOR SALE

cabinets

Rare Alexander Wright / Westminster Fortin Stick Barometer. Circa 1900.

1900 - 1920

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Rare Alexander Wright / Westminster Fortin Stick Barometer. Circa 1900.

From Dragoncharger Antiques

£1,250

FOR SALE

barometers

Rare Bow Fronted Stick Barometer by Dollond of London

19th century

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Rare Bow Fronted Stick Barometer by Dollond of London

From P A Oxley Antique Clocks & Barometers

£11,500

FOR SALE

barometers

19th century

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A Good 19th Century Mahogany Stick Barometer

From Gutlin Clocks

£900

FOR SALE

barometers

Early Twentieth Century Cased Barocyclonometer or Typhoon Barometer

1900 - 1920

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Early Twentieth Century Cased Barocyclonometer or Typhoon Barometer

From Jason Clarke Antiques

£3,500

FOR SALE

barometers

19th century

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Nice Antique Thread Tester – Circa 1880

From Kingsdown Antiques

£275

FOR SALE

miscellaneous

Precision Level with Clinometer by Cooke Troughton & Simms

1900 - 1920

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Precision Level with Clinometer by Cooke Troughton & Simms

From Hatchwell Antiques

£950

FOR SALE

miscellaneous

1900 - 1920

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Barograph by R Fuess

From Shackladys Antiques

£795

FOR SALE

barometers

Late Eighteenth Century Mahogany Stick Barometer by Gilbert London

18th century

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Late Eighteenth Century Mahogany Stick Barometer by Gilbert London

From Jason Clarke Antiques

£1,595

FOR SALE

barometers

Listings feature mahogany scientific instruments spanning the eighteenth, nineteenth, and early twentieth centuries, incorporating brass, glass, steel, and paper components.

19th century

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A Military Campaign Telescope

From The Antique Partnership

£1,250

FOR SALE

miscellaneous

19th century

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Victorian Mercury Mahogany Barometer

From Kembery Antique Clocks Ltd

£320

FOR SALE

barometers

A Pozzoby London a Late 18th Century Boxwood and Ebony Inlaid Mahogany Stick Barometer

19th century

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A Pozzoby London a Late 18th Century Boxwood and Ebony Inlaid Mahogany Stick Barometer

From Gutlin Clocks

£900

FOR SALE

barometers

Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh

19th century

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Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh

From Jason Clarke Antiques

£1,495

FOR SALE

miscellaneous

Victorian Long Range Stick Barometer by Negretti & Zambra London

19th century

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Victorian Long Range Stick Barometer by Negretti & Zambra London

From Jason Clarke Antiques

£2,200

FOR SALE

barometers

Georgian Mahogany Stick Barometer by Tarone Gally & Co.

19th century

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Georgian Mahogany Stick Barometer by Tarone Gally & Co.

From AJD Antiques

£975

FOR SALE

barometers

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Mahogany Scientific Instrument

A George III Period Mahogany Stick Barometer

Superb 19th Century Microscope Slide Cabinet and 280 Slides

Rare Alexander Wright / Westminster Fortin Stick Barometer. Circa 1900.

Rare Bow Fronted Stick Barometer by Dollond of London

A Good 19th Century Mahogany Stick Barometer

Early Twentieth Century Cased Barocyclonometer or Typhoon Barometer

Nice Antique Thread Tester – Circa 1880

Precision Level with Clinometer by Cooke Troughton & Simms

Barograph by R Fuess

Late Eighteenth Century Mahogany Stick Barometer by Gilbert London

A Military Campaign Telescope

Victorian Mercury Mahogany Barometer

A Pozzoby London a Late 18th Century Boxwood and Ebony Inlaid Mahogany Stick Barometer

Cased George IV Altazimuth Theodolite by Alexander Adie of Edinburgh

Victorian Long Range Stick Barometer by Negretti & Zambra London

Georgian Mahogany Stick Barometer by Tarone Gally & Co.

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