Two ads for vintage vibration belts. The one on the left is thought to be from the 1930’s (original source unknown, accessed at https://i.pinimg.com/236x/83/62/d0/8362d0a67f4137a3f0c902c451453c2f.jpg). The ad on the right promotes a 1928 antique Savage vibrating belt exercise machine (accessed at https://www.atticpaper.com/proddetail.php?prod=1928-savage-exercise-machine-ad-vibrating-belt).
