This vintage Fisher Scientific Co. hydrometer measures Baume 0-12 and is perfect for measuring the specific gravity of liquids. It was manufactured in the United States and can be used for a variety of purposes, including in the medical and lab equipment industry. This piece is perfect for glue makers and other industrial uses. The brand Fisher Scientific guarantees quality and precision, making this hydrometer a valuable tool in any lab or industry.SELLING AS FOUND UNTESTED IN ORIGINAL BOX. EMAIL ANY QUESTIONS. THANKS FOR LOOKING.