Slate and stylus
Tool used by the blind to write text which can be read through touch / From Wikipedia, the free encyclopedia
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Not to be confused with the wax tablet and stylus.
The slate and stylus are tools used by blind people to write text that they can read without assistance.[1][2] Invented by Charles Barbier as the tool for writing letters that could be read by touch,[3] the slate and stylus allow for a quick, easy, convenient and constant method of making embossed printing for Braille character encoding. Prior methods of making raised printing for the blind required a movable type printing press.