Vintage Orginal Welch Barometer US Made. Measures 5 1/4 across. The item “Vintage Orginal Welch Barometer US Made” is in sale since Sunday, August 02, 2015. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “auctionit2u” and is located in Logan, Utah. This item can be shipped to [...]