I have no idea how or if it works, but it looks impressive on the shelf. The label shows Japanese characters and A. There are several patent numbers on various parts. I did see 8 days in French on the top of the cylinder; I’m sure someone out there knows more about this item than I do; Please feel free to enlighten me. The item “WW II Japanese Navy Barograph, Humistat, A. Nakamura Company, Wood & Glass Case” is in sale since Wednesday, November 16, 2016. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “chocolatedog” and is located in Fort Defiance, Virginia. This item can be shipped worldwide.
