Antique Barometer 1820s G. The item “Antique Barometer 1820s G. Roth 43″ is in sale since Monday, April 09, 2018. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “russ63″ and is located in Saint Petersburg, Florida. This item can be shipped to United States.