This is a Pittsburg Antique. The barometer is guessed to be from around the early 1900’s. There is no H on Pittsburgh, indicating it is pre-1911. This is a great piece of history! It was said that this was probably came off of a boat! Think of all the times it went up and down the Ohio River! Please view the pictures for the condition! Vintage items are added weekly. Message me with any questions! The item “Geo L Kopp and Co Barometer Antique Rare Vintage Weather Pittsburg Pittsburgh” is in sale since Friday, November 17, 2017. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “jbl4664″ and is located in Oakdale, Pennsylvania. This item can be shipped to United States.