The Vintage Beltone Audiometer Model 10A is a rare and collectible piece of medical equipment that is designed for conducting hearing tests. With its roll top design, this audiometer is unique and hard to find. It has been tested and is in working condition, making it a valuable addition to any healthcare or lab equipment collection. The Beltone brand ensures high quality and reliability in testing hearing abilities, making this audiometer a sought-after item for those in the industry.