L. Casella Gimbaled Barometer
Mahogany mercury stick barometer labeled "L. Casella & Co. 23 Hatton Garden London". Designed for ships use the barometer floats on a brass gimbal and can be fastened to the wall at the top. Single scale adjusted with an ivory knob below the top window. Mercury thermometer. Carved wood cover over the mercury cistern at the bottom. Louis Pascal Casella worked at this location from 1858 to 1871, and was 'maker to the Admiralty, Board of Trade, Board of Ordnance and the Governments and Observatories of India, Russia, Spain, Portugal, the United States and the Brazils'. He became one of the largest makers of barometers in England.