A noctograph is a writing instrument composed of a chemically treated paper, over which is placed a metal grid. The user writes with a metal stylus. The original purpose was to allow the blind or partially sighted to write with more ease than with a traditional pen, although it has also been used by the fully sighted to write in the dark. It was originally patented by Wedgewood of London in 1806.
- W R Wedgewood's advertisement of 1842 -
- William H. Prescott - Encyclopædia Britannica v. 14, p. 993. 1974
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