'Acousticon' battery-powered hearing aid made by Dictograph Products Corporation
- Made:
- circa 1915 in New York
'Acousticon' battery-powered hearing aid made by Dictograph Products Corporation, New York, c.1915.
Details
- Category:
- Ophthalmology
- Object Number:
- Y1991.346
- Materials:
- plastic (unidentified) and metal (unknown)
- Measurements:
-
Overall: 20 mm 53 mm,
- type:
- electric hearing aid
- credit:
- Gift of Mr. C. Loftus