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.

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

3+ MONTHS AGO

barometers

19th century

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Architects Level by Wf Stanley 1892

From Wickersley Antiques

£220

3+ MONTHS AGO

miscellaneous

An Unusual Pneumothorax Scientific Instrument

1920 - 1940

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An Unusual Pneumothorax Scientific Instrument

From John Howkins Antiques

£380

3+ MONTHS AGO

miscellaneous

19th century

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Dominic Gatty - Barometer

From Its About Time

£1,550

3+ MONTHS AGO

barometers

Superb Quality Antique Mahogany Negretti & Zambra Aneroid Barometer

19th century

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Superb Quality Antique Mahogany Negretti & Zambra Aneroid Barometer

From David Wolfenden Antiques

£975

3+ MONTHS AGO

barometers

Early 19th Century Mahogany Stick Barometer by Malacrida of Dublin

18th century

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Early 19th Century Mahogany Stick Barometer by Malacrida of Dublin

From John Beazor Antiques

£3,350

3+ MONTHS AGO

barometers

Rare Regency Birds Eye & Mahogany Mercury Barometer

19th century

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Rare Regency Birds Eye & Mahogany Mercury Barometer

From Heydays Antiques

£1,200

3+ MONTHS AGO

barometers

19th century

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19th Century Mahogany Banjo Barometer

From Mytton Antiques - Jerrard Nares

£820

3+ MONTHS AGO

barometers

Wheel Barometer by George Dollond of London

19th century

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Wheel Barometer by George Dollond of London

From P A Oxley Antique Clocks & Barometers

£4,950

3+ MONTHS AGO

barometers

Mahogany Shell Barometer by Schiavi of Chesham

19th century

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Mahogany Shell Barometer by Schiavi of Chesham

From P A Oxley Antique Clocks & Barometers

£1,350

3+ MONTHS AGO

barometers

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

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Mahogany Scientific Instrument

Georgian Mahogany Stick Barometer by Tarone Gally & Co.

Architects Level by Wf Stanley 1892

An Unusual Pneumothorax Scientific Instrument

Dominic Gatty - Barometer

Superb Quality Antique Mahogany Negretti & Zambra Aneroid Barometer

Early 19th Century Mahogany Stick Barometer by Malacrida of Dublin

Rare Regency Birds Eye & Mahogany Mercury Barometer

19th Century Mahogany Banjo Barometer

Wheel Barometer by George Dollond of London

Mahogany Shell Barometer by Schiavi of Chesham

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