How do these barometers work?

A sealed glass tube filled with mercury responds directly to shifts in atmospheric pressure by rising or falling. A visible scale alongside the tube translates these movements into readable weather indicators. In wheel instruments, the mercury acts upon an internal float attached to a delicate pulley system. This drives the pointer around the circular dial face.

Where were they placed originally?

Owners mounted these instruments in hallways, libraries, and principal reception rooms where household members could consult them daily. Their architectural wooden cases served both practical scientific functions and decorative interior roles. Marine stick barometers also saw service aboard ships, where gimbal mountings kept the column vertical despite vessel movement.

How should I care for one?

Keep the instrument away from direct sunlight, central heating sources, and damp exterior walls to protect the timber case and internal mercury column. Dust the glass and brass components gently with a soft dry cloth. When relocating the barometer, tilt it carefully to secure the mercury column and prevent air pockets from entering the glass tube.

Are signed instruments more desirable?

Signed register plates bearing the maker and trading address often indicate higher workshop standards and help date the piece accurately. Known makers invested greater skill in dial engraving and case construction. Unsigned examples still offer fine cabinet work and reliable domestic utility, reflecting standard regional production of the period.

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Georgian Weather Instrument

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A georgian weather instrument is a precision device for reading atmospheric pressure, prized for combining domestic utility with cabinet-making skill.

Mahogany Barometer by Vecchio & Co of Shaftsbury

19th century

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Mahogany Barometer by Vecchio & Co of Shaftsbury

From Hatchwell Antiques

£1,250

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

18th century

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Quality 18th Century Antique Georgian Mahogany Banjo Barometer

From London City Antiques

£1,485

3+ MONTHS AGO

barometers

19th century

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Dominic Gatty - Barometer

From Its About Time

£1,550

3+ MONTHS AGO

barometers

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Georgian Weather Instrument

Mahogany Barometer by Vecchio & Co of Shaftsbury

Wheel Barometer by George Dollond of London

Quality 18th Century Antique Georgian Mahogany Banjo Barometer

Dominic Gatty - Barometer

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