Prototype infant hearing test cradle developed at Brunel University, London, 1980 Prototype infant hearing test cradle developed at Brunel University
Imitation tortoiseshell ear trumpet, for wearing over the ear, broken, 1870-1928. Imitation tortoiseshell ear trumpet
Clinical audiometer, model 84, an intermediate form of audiometer between that used in a clinic and smaller, more portable audiometers, for use by consultants in their own rooms, with special audio cup earphones, made by Amplivox, London 1970-75. Clinical audiometer
