Antique Sympiesometer, Barometer, Victorian, J. Graham, Rosewood, Nautical

Description

Antique Sympiesometer Barometer Victorian J. Graham Liverpool Rosewood Nautical Instrument

This finely preserved Victorian sympiesometer was produced by J. Graham of Liverpool, a noted maker of precision scientific and navigational instruments during the 19th century. The sympiesometer was an early form of barometer, widely used aboard ships for measuring atmospheric pressure with greater responsiveness to temperature variation than traditional mercury barometers.

Housed in an elegant rosewood case with an original glazed front, the instrument features finely engraved silvered scales, a mercury thermometer, and the characteristic U-shaped liquid tube with an adjustable index mechanism. The engraved aperture and calibrated scales demonstrate the high level of craftsmanship and technical precision associated with British instrument makers of the period.

Liverpool was a major centre of maritime trade and instrument manufacture, and instruments bearing local maker marks are increasingly sought after by collectors of nautical history and scientific apparatus. Sympiesometers of this quality, retaining original components and clear maker identification, are now rare survivals.

The piece offers a strong decorative presence while retaining important historical and technical significance.

Maker: J. Graham, Liverpool
Period: Victorian, 19th century
Materials: Rosewood case, silvered brass scales, glass, mercury
Function: Atmospheric pressure measurement (marine barometer)

Barometers and Clocks–Clocks, Mantle clocks, music boxes, and other similar items may require service after transportation and are sold as decorative pieces. Please note, whilst the clock currently works, during transport, all clocks are moved around a lot, and therefore, they may require setting up upon receiving them, as well as the possibility of requiring professional assistance or service, as they can get ‘stuck’. There is no guarantee that the clock will work smoothly after it has been transported. Overall, the clock is in good working condition. The ormolu is in good condition and retains a very good colour.

Most objects sold in our gallery are antiques, vintage or used; therefore, they will show signs of being antique, vintage or used. There may be signs of scratches, discolouration, chips, cracks, wear and tear, unknown manufacturers and/or patterns. Please see the photographs as they form part of the description.  Overseas buyers may have to pay any import duties, taxes, or fees that may apply. All items are meticulously wrapped and prepared for both international and UK shipping. Overseas buyers should contact us for courier charges.