Antique Holosteric pocket Barometer & Celsius Thermometer. Original carrying leather velvet case with shoulder strap. Paul Naudet – PNHB. Unusual to see one of these “paired” with a Celsius Thermometer. Curved Thermometers semi circle – arc – are rare to their own to see! I put this into the freezer to get the mercury to go down, it did, I do not know how to adjust or calibrate either the barometer or thermometer. This is an extremely old example of PNHB Paul Naquet, France precision instruments. Look at all photos closely. The item “Antique Holosteric pocket Barometer & Celsius Thermometer original leather case” is in sale since Monday, February 3, 2020. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “sparkydetroit” and is located in Dearborn, Michigan. This item can be shipped to United States.
