"Ardente" hearing aid, cased, by R.H. Dent, England, 1920-1940
Details
- Category:
- Audiology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- A602534
- Materials:
- case, leatherette, black, lining, velvet, blue, power unit, bakelite, earphone, steel, painted black, small earpiece, steel and small earpiece, bakelite
- Measurements:
-
case: length 256 mm
case: width 80 mm
case: height 78 mm
earphone: diameter 54 mm
power unit: length 161 mm
power unit: width 53 mm
power unit: height 28 mm
small earpiece: diameter 27 mm
- type:
- hearing aids
- credit:
- Bailey, A. Optical Mission
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