Shown is an’ ANTIQUE POCKET BAROMETER’. Maker stamped on the silvered dial’ Tycos – London’. Also’Paul Meyrowitz – New York’ – the probably retailer’. Will say a date of 1890 – 1920. Contained in it’s original leather silk and felt lined case. Front button has gone missing but the case will still open close securely – depress the area of that button and case will open easily. I nstrument is in excellent plus condition. None of the generally seen staining or darkening on the dial. Outer altitude ring rotates properly to adjust for a compensated reading. The needle moves readily in the inflated bag test. The nickel plating is about perfect. A very nice example… The item “ANTIQUE POCKET BAROMETER” is in sale since Thursday, August 20, 2015. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “stuatisl” and is located in Alameda, California. This item can be shipped to United States.