How do I operate a desktop telescope?

Extend the brass draws fully and adjust the focus ring while sighting a distant object through the lens. Ensure the instrument rests securely on its folding brass tripod or table stand to maintain stability during viewing.

Where should I place a barograph?

Position the instrument on a stable desk or shelf away from direct heat sources and open windows to allow accurate atmospheric recording. Open the glazed wooden case periodically to replace the paper chart on the revolving drum and wind the clockwork mechanism.

How do I identify the period of an instrument?

Examine the engraved maker signature, typeface, and style of the brass barrel or dial, which often reflect Georgian or Victorian design conventions. The materials of the fitted case, such as solid mahogany or polished oak, also offer clues to the era of manufacture.

Can I use these optical instruments today?

Library and tabletop telescopes remain functional for terrestrial observation when the glass lenses are clean and properly aligned. Magnifiers and linen testers require no adjustment and function just as they did for merchants and naturalists in the past.

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Desktop Brass Instrument

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A desktop brass instrument brings precision mechanics and scientific utility directly to a study or library table.

Antique Mahogany Cased Barograph with Chart Drawer Short & Mason, London

19th century

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Antique Mahogany Cased Barograph with Chart Drawer Short & Mason, London

From N Wilson Antiques Clocks

£1,100

3+ MONTHS AGO

barometers

English Antique Oak Cased Barograph with Bevelled Glass and Chart Drawer

1900 - 1920

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English Antique Oak Cased Barograph with Bevelled Glass and Chart Drawer

From N Wilson Antiques Clocks

£745

3+ MONTHS AGO

barometers

Barograph by Short & Mason. In an Oak 5-Glass Case.
circa 1930.

1920 - 1940

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Barograph by Short & Mason. In an Oak 5-Glass Case. circa 1930.

From M. C. Taylor

£1,850

3+ MONTHS AGO

barometers

19th century

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Mid-victorian Marine Barometer

From Beechmount Antiques

£395

3+ MONTHS AGO

barometers

Antique Cased Microscope, English, Scientific Instrument, Swift & Son, Edwardian

1900 - 1920

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Antique Cased Microscope, English, Scientific Instrument, Swift & Son, Edwardian

From London Fine Antiques

£1,195

3+ MONTHS AGO

miscellaneous

19th century

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A Library Telescope by S & B Solomons

From W.J. Gravener Antiques Ltd.

£1,850

3+ MONTHS AGO

miscellaneous

Small Georgian Cased Library Telescope on Stand by Matthew Berge London

19th century

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Small Georgian Cased Library Telescope on Stand by Matthew Berge London

From Jason Clarke Antiques

£1,995

3+ MONTHS AGO

miscellaneous

WWII Portable Altimeter Calibration Pressure Chamber, Air Ministry, Circa 1939.

1920 - 1940

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WWII Portable Altimeter Calibration Pressure Chamber, Air Ministry, Circa 1939.

From Hatchwell Antiques

£4,500

3+ MONTHS AGO

miscellaneous

Walnut Cased Barograph by Depree and Young Ltd Exeter

1900 - 1920

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Walnut Cased Barograph by Depree and Young Ltd Exeter

From Shackladys Antiques

£1,195

3+ MONTHS AGO

barometers

18th century

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18th Century Telescope by G.adams of London

From Ballinderry Antiques

£1,480

3+ MONTHS AGO

miscellaneous

Listings feature scientific instruments spanning the eighteenth, nineteenth and twentieth centuries, constructed from brass, mahogany, oak and cast iron.

Large Antique Library Telescope, English, Starboy, Astronomical, Broadhurst & Co

1900 - 1920

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Large Antique Library Telescope, English, Starboy, Astronomical, Broadhurst & Co

From London Fine Antiques

£2,850

3+ MONTHS AGO

miscellaneous

1900 - 1920

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A Five Glass Barograph

From Chalfont Clocks

£1,500

3+ MONTHS AGO

barometers

19th century

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19th C Gilt Brass Table Top Telescope

From Mytton Antiques - Jerrard Nares

£650

3+ MONTHS AGO

miscellaneous

19th century

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French Victorian Atmos Barometer

From Jason Clarke Antiques

£1,750

3+ MONTHS AGO

barometers

Very Large Victorian Desk Thermometer by W Watson & Sons London

19th century

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Very Large Victorian Desk Thermometer by W Watson & Sons London

From Jason Clarke Antiques

£725

3+ MONTHS AGO

miscellaneous

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Desktop Brass Instrument

Antique Mahogany Cased Barograph with Chart Drawer Short & Mason, London

English Antique Oak Cased Barograph with Bevelled Glass and Chart Drawer

Barograph by Short & Mason. In an Oak 5-Glass Case. circa 1930.

Mid-victorian Marine Barometer

Antique Cased Microscope, English, Scientific Instrument, Swift & Son, Edwardian

A Library Telescope by S & B Solomons

Small Georgian Cased Library Telescope on Stand by Matthew Berge London

WWII Portable Altimeter Calibration Pressure Chamber, Air Ministry, Circa 1939.

Walnut Cased Barograph by Depree and Young Ltd Exeter

18th Century Telescope by G.adams of London

Large Antique Library Telescope, English, Starboy, Astronomical, Broadhurst & Co

A Five Glass Barograph

19th C Gilt Brass Table Top Telescope

French Victorian Atmos Barometer

Very Large Victorian Desk Thermometer by W Watson & Sons London

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