William Mansell specialise in sales of new, modern and traditional styled barometers and barographs. Expert in conservation, restoration, repair and overhaul of antique barometers and barographs (plus supply of barograph inks and chart recorder nibs). Available for sale are selected antique barographs (for example Negretti & Zambra Barograph).
Barometers and barographs are fascinating and make wonderful gifts for those interested in meteorology and those who are attracted to the intricacy and craftsmanship of the piece itself.
A barometer is an instrument used to measure atmospheric pressure and has, for centuries, been used as a device for predicting short term weather changes. A drop in atmospheric pressure predicts bad or stormy weather.
A barograph is a barometer with a recording attachment – a barogram (or chart) – that records changes in atmospheric pressure over time.
William Mansell supply a number of different styles and types of new barometers and barographs –
Barograph (top right)
This barograph has a traditional display (eight day) and is housed in an attractive mahogany case with beveled glass. It has eleven jewels clock movement, aneroid movement (temperature compensated) and is supplied with two years of charts.
Admiral Fitzroy Barometer (top left)
This is a stunning piece with a mahogany case with lacquered brass fittings.
It was designed in 1860 by Admiral Fitzroy who is considered to have provided the world’s first weather forecasting service. This barometer includes his detailed instructions for reading the pressure changes.
The Sheraton (bottom right)
The elegant Sheraton ‘door stick’ barometer (originally made around 1810) has a fine mahogany case with feathered veneer – inlaid with a ‘rope’ edgeline. It has a silver-plated dial and a thermometer (vernier and Centigrade & Fahrenheit), a glazed door and lacquered brass fittings.
William Mansell supply three styles of the Banjo Barometer –
Banjo is based on the original design of 1790, with Georgian-style walnut case and decorative pediment with swan-neck scroll.
Banjo Barometer (centre right) has a mahogany case with Sheraton inlay and arched thermometer. It is decorated with curl veneer including marquetry shells.
Aneroid Banjo Barometer (centre left) has a mahogany case with beveled glass and lacquered brass fittings. Features include a four inch diameter silver effect dial and humidity indicator, precision aneroid movement and a spirit thermometer.
The Ship-of-the-line mercury marine barometer with gimbal
This slim line barometer (originally designed around 1840) has a mahogany case with black edgeline. Other features include silver-plated dials, a spirit thermometer and lacquered brass fittings.
William Mansell offers two versions of the Ship’s Marine Clock and Barometer -
This Ship’s Marine Clock and Barometer has precision aneroid and quartz movements with calibrations in inches and millibars. The clock and barometer are housed in solid brass cases and may be ordered separately or mounted on a mahogany board with inlaid veneer.
This version of the Ship’s Marine Clock and Barometer has precision aneroid and quartz movements housed in solid, lacquered brass cases. The enameled finish dials have calibrations in inches and millibars and have convex glasses with curved thermometer (scale in Centigrade and Fahrenheit). Clock and barometer may be ordered individually or mounted on mahogany board.
Ship’s Marine Instrument
Three precision aneroid and quartz movements in solid lacquered brass cases; dials are calibrated in inches and millibars. Can be ordered individually or mounted on mahogany board.
William Mansell has four versions of the Traditional Barometer –
Aneroid Traditional Barometer has a mahogany case with temperature compensated precision aneroid movement, thermometer (with Centigrade and Fahrenheit scale), humidity indicator and convex mirror. The silver effect dial is calibrated in inches and millibars. Other features include beveled glass and lacquered brass fittings.
Traditional Barometer with Yew case with burr veneer (also available in walnut) has beveled glass with lacquered brass fittings. Features include temperature compensated precision aneroid movement, silver effect dial (calibrated in inches and millibars), spirit thermometers (in Centigrade and Fahrenheit) and a humidity indicator.
Traditional Barometer with mahogany case (curl veneer inlaid black/white) with beveled glass and lacquered brass fittings. This barometer has a temperature compensated precision aneroid movement, silver effect dial (inches and millibars), spirit thermometer (Centigrade and Fahrenheit scale) and humidity indicator.
Traditional Barometer has a solid mahogany case, convex glass and lacquered brass fittings. Features include a precision aneroid movement (temperature compensated), humidity indicator, silver effect dial (calibrated in inches and millibars) and spirit thermometer (scaled in Centigrade and Fahrenheit).

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