Old triple dial aneroid barometer marked Watkin Patent Compensated No. Hicks 8, 9, & 10 Hatton Garden London. It measures 3 1/8 inches in diameter. Henry Watkin was granted U. Patent #364692 in 1887, see: google. Com/patents/US364692. His English patent 3425 was granted March 11, 1886. It is has some aging to the case, display, but only a little on the copper/brass metal body. I do not know when it was last tested for accuracy or if it works. I had bought this off a friend awhile back and have decided to part with it. Please contact me with any questions or requests for additional pictures. The item “Barometer/Altimeter Watkin Patent 1886/87 J. Hicks London Triple Dial Old Antique” is in sale since Sunday, February 28, 2016. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “jamaica3sm” and is located in Trenton, Michigan. This item can be shipped worldwide.
