Bidspirit auction | Late 19th Century Oak Cased

Late 19th Century Oak Cased Admiral Fitzroy Mercury Stick Barometer by Vigars Lancaster - A Victorian mercury stick barometer of the Admiral Fitzroy pattern, housed in an oak case with a pedimented top and squared base. The instrument features a glazed front protecting a printed paper backplate which contains extensive meteorological instructions and charts. The left-hand side of the backplate is titled Admiral Fitzroy's Remarks and includes detailed comparative scales for Barometer Rises and Barometer Falls, alongside a Mountain Scale for altitude adjustments. To the right, a printed diagram titled The Atmosphere illustrates the height of the atmosphere in miles, featuring a cross-sectional map of the Earth with labels including Himalayas, Andes, Alps, and Level of the Sea. Mounted to the upper right is a boxwood-scale thermometer measuring in Fahrenheit, with the maker's name Vigars Lancaster printed at the top of the scale. A diamond-shaped mark on the backing plate is impressed with J Patent No. 3601. The mercury reservoir is visible at the bottom right, encased in a glass cistern containing a green fluid residue. The instrument retains one adjustable brass pointer.