The broad cure-all claim. Morris Fishbein’s 1932 Fads and Quackery in Healing records that the I-ON-A-CO’s user ‘was told that he might be rid of any chronic disorder merely by placing this device around the neck and turning on the current,’ and the device’s own advertising promised to ‘restore the Ionaco user to perfect health.’ Classified testimonial: the only evidence ever offered was anecdotal user endorsement gathered for advertising, with no controlled outcome. It is refuted. No mechanism consistent with physiology supports the device, and the American Medical Association’s Bureau of Investigation, under Arthur J. Cramp, examined the apparatus and dismissed it as quackery, calling it the ‘magic horse collar.’ The promise to relieve any chronic disease with a coil of wire is the same universal-cure structure seen across the archive’s electrical and patent-medicine cases.