The Phonac model C hearing device manufactured by French Electric Company in New York resembles a camera. The front grate is made to look like a camera lens, and the volume controls and batteries sit inside the device. Sold for about $60, the device worked when a receiver was plugged into it, amplifying the sound for the user. This is one of many hearing devices that allowed the user to conceal his or her disability.
Courtesy of the Becker Medical Library, Washington University School of Medicine