Description
This antique portable medical device, known as a Prof A. Chrystal Invigorator "Quack" machine, is a rare find for collectors and enthusiasts of vintage medicine. Manufactured in the early 1900s, this device is a testament to the advancements in medical technology since that time. Featuring a unique design and functionality, this Quack machine is a great addition to any antique medical collection. Its pre-1930 time period of manufacture adds to its historical significance. This device is perfect for display and interpretation, and is sure to be a conversation starter in any room.