1. Hydrometer for liquids less dense than water. Range 650-1000 2. Hydrometer for liquids more dense than water. Range 1000-2000 3. Hydrometer for liquids more dense than water. Range 0-75 (Baumé scale) DataInventory Number: MES22Date: Last quarter of 19th c. Maker: Alvergniat frèresInstrument Categories: Measures PlacesLocation: Μεγάλη του Γένους Σχολή, Κωνσταντινούπολη - Megali Genous Scholi of ConstantinopleOrigin: Μεγάλη του Γένους Σχολή, Κωνσταντινούπολη - Megali Genous Scholi of Constantinople