1930s, wartime, Mori Instruments Manufacturing Co. This is a pressure gauge from Mori Keiki Seisakusho, which was certified as a Navy-designated factory in 1937. 1930s, wartime, Mori Keiki Seisakusho, pressure gauge, pressure gauge, Japanese military, military, Zero fighter, Navy, original. This is an old item, so please use it as a collector’s item. We do not mark merchandise values below value or mark items as “gifts” – Japan, US and International government regulations prohibit such behavior. About Importer’s Obligation. Thank you for your understanding.