Deafness in Disguise

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Portable Acousticon in use
Woman using the Portable Acousticon, as illustrated in: Evan Yellon’s Surdus in search of his hearing: an exposure of aural quacks and a guide to genuine treatments and remedies electrical aids, lip-reading and employments for the deaf etc., etc. London: Celtic Press, 1906 (p. 48). This small type Acousticon was intended to be carried about by the user, with the receiver attached to some part of the clothing, the battery into a pocket or handbag and the ear-piece carried in the hand or attached to a lorgnette handle.