How do I read a marine barometer?

Marine barometers use a column of mercury or alternative fluids to measure atmospheric pressure changes. Rising levels indicate improving weather, while falling readings warn of approaching storms. Most nautical examples feature sliding vernier scales on the brass face to track subtle shifts. They are typically mounted on gimbals to remain vertical as the ship rolls.

Were these instruments used on ships?

Yes, instruments such as chronometers, binnacles, and stick barometers were essential equipment for navigation and weather forecasting at sea. Captains and officers relied on them daily to calculate position and avoid hazards. Smaller items like pocket compasses and spyglasses were often personal property purchased by officers for their own use. Their survival shows the practical utility demanded by life on the water.

How should I care for brass and mahogany?

Keep these pieces away from direct sunlight and extreme humidity changes to protect the wood and prevent the brass from tarnishing too quickly. A dry microfiber cloth is sufficient for removing dust from polished surfaces. Avoid using harsh chemical polishes on aged brass, as this removes the historic patination accumulated over generations. Treat mahogany cases with occasional applications of neutral wax to preserve the grain.

Why do some telescopes have leather wraps?

Leather provides a secure, non-slip grip for sailors operating telescopes in wet and windy conditions on deck. It also protects the brass barrel from minor bumps and scratches during daily use. These wrapped tubes are often referred to as day or night spyglasses. The textured grip is a practical feature typical of 19th-century maritime equipment.

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Antique Marine Instrument

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These antique marine instruments are functional survivals of navigation and timekeeping at sea, prized by collectors for their precise engineering and historic brass and mahogany construction.

19th century

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An Antique Explorer's Compass

From Opus Antiques

£190

3+ MONTHS AGO

miscellaneous

19th century

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Bate of London Marine Stick Barometer

From Kembery Antique Clocks Ltd

£975

3+ MONTHS AGO

barometers

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

19th century

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Mid-victorian Marine Barometer

From Beechmount Antiques

£395

3+ MONTHS AGO

barometers

19th century

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Nice Ships Barometer

From Samuel Orr Antique Clocks

£3,000

3+ MONTHS AGO

barometers

Early Victorian Sympiesometer by Charles Baker of 244 High Holborn, London.

19th century

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Early Victorian Sympiesometer by Charles Baker of 244 High Holborn, London.

From Jason Clarke Antiques

£2,750

3+ MONTHS AGO

barometers

19th century

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A Regency London Made Pocket Telescope

From The Antique Partnership

£395

3+ MONTHS AGO

miscellaneous

Antique Officer of the Watch Telescope, English, After Dollond, Victorian, 1890

19th century

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Antique Officer of the Watch Telescope, English, After Dollond, Victorian, 1890

From London Fine Antiques

£1,095

3+ MONTHS AGO

miscellaneous

Antique Pair of Chrome Ships Bulkhead Clock and Barometer

1920 - 1940

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Antique Pair of Chrome Ships Bulkhead Clock and Barometer

From Georgian Antiques

£900

3+ MONTHS AGO

barometers

A Rare London Made Nine Sided 18thc Telescope

18th century

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A Rare London Made Nine Sided 18thc Telescope

From The Antique Partnership

£1,200

3+ MONTHS AGO

miscellaneous

Listings feature scientific instruments from the eighteenth, nineteenth, and twentieth centuries, constructed from brass, mahogany, leather, and rosewood.

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

3+ MONTHS AGO

barometers

English Georgian Marine Stick Barometer Gowland London

19th century

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English Georgian Marine Stick Barometer Gowland London

From Andrew Nethercott Antiques

£875

3+ MONTHS AGO

barometers

1920 - 1940

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Thomas Mercer 2 Day Chronometer

From Finchingfield Antiques

£3,250

3+ MONTHS AGO

clocks

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Antique Marine Instrument

An Antique Explorer's Compass

Bate of London Marine Stick Barometer

Antique English Mahogany Cased Compass by Stanley, London

Mid-victorian Marine Barometer

Nice Ships Barometer

Early Victorian Sympiesometer by Charles Baker of 244 High Holborn, London.

A Regency London Made Pocket Telescope

Antique Officer of the Watch Telescope, English, After Dollond, Victorian, 1890

Antique Pair of Chrome Ships Bulkhead Clock and Barometer

A Rare London Made Nine Sided 18thc Telescope

Early Twentieth Century Cased Barocyclonometer or Typhoon Barometer

English Georgian Marine Stick Barometer Gowland London

Thomas Mercer 2 Day Chronometer

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