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Hectograph: Revision history

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21 February 2015

  • curprev 13:5713:57, 21 February 2015 Tgaitskell talk contribs 269 bytes +269 Created page with "The hectograph process was invented in Russia in 1869 by Mikhail Alisov. The gelatin duplicator or 'jellygraph' is a printing process which involves transfer of an original, prep..."