This Vintage Baume ZEAL Clinical Medical Glass Hydrometer in case is a rare find for collectors of scientific instruments and medical memorabilia. Made in the United Kingdom from high-quality glass, this hydrometer is a testament to the precision and craftsmanship of the past. With a Sub-Type of Hydrometer and a Type of Medical, this antique hydrometer is a perfect addition to any collection of scientific collectables. The hydrometer dates back to the period of 1951 to the present and is in excellent condition. This item is a must-have for anyone interested in the history of medical instruments and their evolution over time.