This set of five vintage/antique thermometers is a rare find for collectors of scientific instruments. Buchi brand is known for their high-quality glass thermometers, and this set is no exception. The thermometers date back to the period of 1951 to present, and are in excellent working condition. The set includes thermometers of various sizes and sub-types, all made from durable glass material.They come in their original case, adding to the authenticity and value of the set. These thermometers are perfect for display in a collection or for use in scientific experiments.