A mid 19th century carved oak 'Royal Polytechnic Barometer'
Davis & Co, 'Inventors and Manufacturers'
The case with architectural cornice over applied gadrooned border to a glazed trunk, the circular 9.5 inch dial fully signed and with twin pointers for yesterday and today, offering an array of weather predictions for summer and winter, with typical wide-bore tube, the glazed centre section with mercury thermometer and with applied plaques giving Admiral Fitzroys "Special Remarks" for when pressure is falling and rising 98cm (3ft 6in) high.