A very rare single dial wheel barometer with integral thermometer.The 10'' diameter silvered brass scale calibrated from 28'' to 31'' and engraved with weather indications, the makers name and place of work and a rare integral thermometer scale calibrated from 10 to 100 degrees Fahrenheit. The dial enclosed within a concave cast brass bezel with original convex glass. The dial also with a blued steel Indicator hand and a brass Set hand controlled by turning the small brass knob just below the dial.The exceptional mahogany case of excellent colour and featuring flame veneers and ebony and boxwood edge inlay.Note: L. Malacrida is recorded as working at 237 Holborn, London between 1810-30. This barometer is not only displaying just one dial which is exceedingly rare on a wheel barometer but the main dial also incorporates a thermometer scale. Both of these features and the high quality veneer used throughout the front elevation of the cabinet work make this barometer a very ra...