This antique massage tool is a must-have for collectors of medical devices. With its unique design and historical significance, it is sure to be a conversation starter. The tool is made for medical use and is a perfect addition to any collection of antique medical equipment. The time period of manufacture is pre-1930, which adds to its rarity and value. It is categorized under antiques and science & medicine (pre-1930) and falls under the medicine and quack medicine categories.