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LicenseSmall square ear trumpet, hearing aid, European, 1801-1900
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Small compact metal ear trumpet hearing aid, with ivory earpiece, made by Hawksley and Sons Ltd, London, 1869-1900.
The user would place the ivory earpiece inside the ear canal. The ear trumpet amplified sounds down the tube acting as a type of parabolic reflector. This reflective device projects energy onto a focal point, in this case the ear drum, through refraction and reflection. This enables the ear trumpet to be an effective hearing aid while remaining relatively small.
Details
- Category:
- Audiology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A602633
- Materials:
- brass, silver plated and earpiece, ivory
- Measurements:
-
overall: 103 mm x 80 mm x 25 mm, .1 kg
- type:
- ear trumpet and hearing aid
- credit:
- Wellcome Trust (Purchased from Stevens)
