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Perkins brailler

The Perkins Brailler was released in 1951 by the Perkins School for the Blind, Watertown, Massachusetts. Enclosed entirely in aluminum plate, with keys projection only slightly, the braille writer is very sturdy and easy for adults and children to use. .

Optophone – Barr and Stroud Ltd., Glasgow

Printed letters are translated by the Optophone into a sound alphabet, which can be readily learned. This is accomplished by producing in a telephone receiver series of musical notes forming tunes or musical motifs, representing the various letters as these are passed over by the instrument in traversing a line of printing. (1928)

Readophone, Readophone Foundation (USA)

An open Readophone showing the wax disc in place on the turntable. The box containing the turntable and mechanics is fashioned to look like a book with the 'spine' forming the front of the lid and covering the speaker grill and operating knobs.