Difference between revisions of "Noctograph"
From Self-sufficiency
m (General fixes and Typo fixing using AWB) |
m (1 revision) |
(No difference)
| |
Latest revision as of 12:16, 20 September 2010
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.[1] It was originally patented by Wedgewood of London in 1806.
Notable users
References
Cite error: Invalid <references> tag;
parameter "group" is allowed only.
<references />, or <references group="..." />
| 40x30px | This tool article is a stub. You can help ssf by expanding it. |
- ↑ W R Wedgewood's advertisement of 1842 -
- ↑ William H. Prescott - Encyclopedia Britannica v. 14, p. 993. 1974
