This vintage set of 3 scientific instruments includes a specific gravity scale, glass hydrometer, and thermometer. Made in the United States, these collectibles are perfect for any science enthusiast or collector. The instruments have been previously owned, but are in excellent working condition.

The specific gravity scale measures the density of liquids, while the glass hydrometer measures the relative density of liquids to water. The thermometer accurately measures temperature, making this set a must-have for any lab or classroom. Each instrument is crafted with precision and attention to detail, and will make a great addition to any collection.