Very old Short Mason London Tycos Pocket Barometer, working. I put it in a baggie and sealed it. I squeezed it gently and the hand moves. Not perfect, so check out the photo’s for condition. It measures approximately 2 3/4 in diameter. The item “Antique Short Mason London Tycos Pocket Barometer Works” is in sale since Saturday, January 28, 2017. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “*machine_age*” and is located in Zionsville, Pennsylvania. This item can be shipped to United States.
