✨Final Price✨ This is likely a thermometer, as my great-grandfather was a doctor. It's believed to be a very rare item historically. Image searches suggest it might be a hydrometer, but based on the writing, I believe it's more likely a thermometer. It's a medical "Maximum" thermometer. However, the scale goes from zero to sixty, so I'm unsure of the correct answer. Length: 18cm, Width: 2.5cm It has a certification from the Tokyo Prefecture from the 36th year of Meiji (1903). The instruction manual also mentions the Japan Thermometer Inspection Center in Nihonbashi, Tokyo City. Over 130 years have passed, and it is not for use. ✨This is a very valuable item. It came out of a leather doctor's bag that has been passed down through my great-grandfather, grandfather, father, and myself. I am offering it for sale in the hope that it will reach the hands of a collector who appreciates valuable historical materials. Instruction manual has tears. The certification box has a fold (likely from the beginning). The wooden box is cracked and broken. As this is an antique item, please understand that all sales are final and returns are not accepted. ※The category is "measuring instruments," but since it is not currently for use, I have categorized it as "antique." #Meiji #HistoricalInstruments #Antique #Rare #Antique #MeasuringInstruments #History #Collection #Maximum #TokyoPrefecture #TokyoCity #Thermometer