Compensated precision barometer Lord Kelvin Ltd London Antique Overall good condition Very old as seen in pics. The item “Compensated precision barometer Lord Kelvin Ltd London Antique” is in sale since Sunday, May 29, 2016. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “mena84262012″ and is located in Downey, California. This item can be shipped to United States.