What is a barograph used for?

A barograph records continuous atmospheric pressure onto a rotating paper drum over the course of a week. This allows observers to track weather trends visually without constant manual readings. Most examples feature an aneroid mechanism housed in an oak or mahogany case with bevelled glass to protect the delicate linkage arms.

How do I date an antique brass compass?

Dating relies on style markers, military broad arrow stamps, or maker signatures engraved on the dial face or inside the lid. Typography and case materials also shift from heavy Victorian brass to lighter twentieth-century aluminium alloys. Patent dates and specific workshop addresses listed in the maker's inscription narrow down the active production window.

Are these scientific instruments still accurate?

Many barometers and compasses retain functional accuracy after gentle calibration, though they served primarily as working tools rather than laboratory-grade standards today. Mechanical wear in gears and changes in magnetic declination over decades affect precise readings. Collectors treat them primarily as historical artefacts rather than reliable modern navigational instruments.

How should I clean mahogany barometer cases?

Mahogany cases require gentle dusting with a dry lint-free cloth to protect the original polished finish and any delicate carved mouldings. Avoid modern liquid polishes or silicone sprays, which accumulate in grain crevices and degrade old shellac. Feed dry wood occasionally with a sparing application of traditional beeswax applied with soft cloth.

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Antique Instrument

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An antique instrument brings practical science and maritime utility into a room through brass, mahogany, and glass.

English Antique Barograph in a 5-Glass Mahogany Case by Short & Mason Limited.
circa 1921.

1900 - 1920

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English Antique Barograph in a 5-Glass Mahogany Case by Short & Mason Limited. circa 1921.

From M. C. Taylor

£1,950

3+ MONTHS AGO

barometers

Antique 2 French Electro Therapy Devices "Institut Electrotherapy" Dated 1905

1900 - 1920

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Antique 2 French Electro Therapy Devices "Institut Electrotherapy" Dated 1905

From Regent Antiques

£275

3+ MONTHS AGO

miscellaneous

A Farmers Negretti & Zambra Stick Barometer

19th century

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A Farmers Negretti & Zambra Stick Barometer

From Kembery Antique Clocks Ltd

£625

3+ MONTHS AGO

barometers

Walnut Cased Barograph Circa 1890, Barometer.

19th century

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Walnut Cased Barograph Circa 1890, Barometer.

From Frank Craig Antiques

£650

3+ MONTHS AGO

miscellaneous

Antique English Mahogany Cased Compass by Stanley, London

19th century

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Antique English Mahogany Cased Compass by Stanley, London

From Puckerings

£295

3+ MONTHS AGO

miscellaneous

Antique Draughtsman's Tool Set, English, Cartography, Instruments, Edwardian

1900 - 1920

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Antique Draughtsman's Tool Set, English, Cartography, Instruments, Edwardian

From London Fine Antiques

£985

3+ MONTHS AGO

miscellaneous

Art Deco Bronze Very Stylish Thermometer.

1900 - 1920

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Art Deco Bronze Very Stylish Thermometer.

From Koos Limburg Jnr. Scotland

£185

3+ MONTHS AGO

miscellaneous

Merkelbach & Co Amsterdam Working Education Model of an Engine.

1900 - 1920

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Merkelbach & Co Amsterdam Working Education Model of an Engine.

From Koos Limburg Jnr. Scotland

£225

3+ MONTHS AGO

miscellaneous

Latimer Clarks Patent Portable Transit Instrument

19th century

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Latimer Clarks Patent Portable Transit Instrument

From Hatchwell Antiques

£2,600

3+ MONTHS AGO

miscellaneous

19th century

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Early 12" Dial Fusee Wall Clock

From Its About Time

£2,650

3+ MONTHS AGO

clocks

Several pocket instruments include tiny sliding magnifying scales designed so Victorian gentlemen could decipher minute maps and thread counts in the field.

Antique Victorian Carved Oak Banjo Barometer by Maple & Co

19th century

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Antique Victorian Carved Oak Banjo Barometer by Maple & Co

From Marylebone Antiques

£475

3+ MONTHS AGO

barometers

19th century

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Mid-victorian Marine Barometer

From Beechmount Antiques

£395

3+ MONTHS AGO

barometers

George III Mahogany Cased Wall Thermometer by Cox of Plymouth Dock

19th century

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George III Mahogany Cased Wall Thermometer by Cox of Plymouth Dock

From Jason Clarke Antiques

£1,250

3+ MONTHS AGO

miscellaneous

19th century

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Nice Ships Barometer

From Samuel Orr Antique Clocks

£3,000

3+ MONTHS AGO

barometers

19th century

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Boxwood Thermoscope by Watkins & Hill

From Hatchwell Antiques

£1,600

3+ MONTHS AGO

miscellaneous

Mahogany Cased Barograph by Robson of Newcastle

1900 - 1920

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Mahogany Cased Barograph by Robson of Newcastle

From Hatchwell Antiques

£850

3+ MONTHS AGO

barometers

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Antique Instrument

English Antique Barograph in a 5-Glass Mahogany Case by Short & Mason Limited. circa 1921.

Antique 2 French Electro Therapy Devices "Institut Electrotherapy" Dated 1905

A Farmers Negretti & Zambra Stick Barometer

Walnut Cased Barograph Circa 1890, Barometer.

Antique English Mahogany Cased Compass by Stanley, London

Antique Draughtsman's Tool Set, English, Cartography, Instruments, Edwardian

Art Deco Bronze Very Stylish Thermometer.

Merkelbach & Co Amsterdam Working Education Model of an Engine.

Latimer Clarks Patent Portable Transit Instrument

Early 12" Dial Fusee Wall Clock

Antique Victorian Carved Oak Banjo Barometer by Maple & Co

Mid-victorian Marine Barometer

George III Mahogany Cased Wall Thermometer by Cox of Plymouth Dock

Nice Ships Barometer

Boxwood Thermoscope by Watkins & Hill

Mahogany Cased Barograph by Robson of Newcastle

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