A George III mahogany mercury stick barometer Charles Aiano, London, circa 1810 With open triangular pediment above line-edged glazed door enclosing rectangular silvered Vernier scale calibrated in barometric inches and with the usual observations to the right opposing Fahrenheit scale spirit thermometer to the left, the upper margin signed C. Aianno, the caddy moulded trunk with visible tube flanked by figured mahogany veneers within chevron line border over rounded base with hemispherical cistern cover and level adjustment screw to underside, 97cm (38ins approx.) high. Charles Aiano is recorded in Banfield, Edwin BAROMETER MAKERS AND RETAILERS 1660-1900 as working in London circa 1790-1820; he is believed to have moved to Canterbury in around 1825.