Victorian Carved Oak Admiral Fitzroys Storm Barometer by Negretti & Zambra Gilbert & Sons The ring is turned until

The ring is turned until a red arrow – that to the right of the segment marked “variable” – points to this normal pressure

The mahogany ten sided tapered barrel holds a single draw tube containing five lenses and is completed with a bulbous type eyepiece with dust slide

The owner’s engraving is similar proof for dating purposes

The original machine was invented by physicist Robert J

but also in what direction the destructive centre of the storm is moving

Victorian Carved Oak Admiral Fitzroys Storm Barometer by Negretti & Zambra Gilbert & Sons The ring is turned untilFor sale a Victorian carved oak stick Admiral Fitzroys Storm Barometer by Negretti & Zambra, London. This superior example of its type is comprised of an oak body with a cistern cover richly ornamented with a central floral motif, chamfered and carved stem and a carved domed top supported by scroll pediments either side. The stem is adorned with a large 13 inch thermometer showing both Fahrenheit and Centigrade scales on an opaline glass with red and