Editing Mimeograph (section)

===Papyrograph ===
A description of the Papyrograph method of duplication was published by David Owen:<ref>{{cite book| first=David| last=Owen  |year=2004 |url=https://books.google.com/books?id=QbFobeCexgsC&pg=PA42 |title=Copies in Seconds|page=42 |publisher=[[Simon & Schuster]] |via=Google book preview |isbn=0-7432-5117-2}}</ref> 

<blockquote>A major beneficiary of the invention of synthetic dyes was a document reproduction technique known as stencil duplicating. Its earliest form was invented in 1874 by Eugenio de Zuccato, a young Italian studying law in London, who called his device the Papyrograph.  Zuccato's system involved writing on a sheet of varnished paper with caustic ink, which ate through the varnish and paper fibers, leaving holes where the writing had been. This sheet – which had now become a stencil – was placed on a blank sheet of paper, and ink rolled over it so that the ink oozed through the holes, creating a duplicate on the second sheet.</blockquote>

The process was commercialized<ref>1878: [https://books.google.com/books?id=tuLgAAAAMAAJ&pg=PA390 Library Journal 3:390] Advertisement via Google Books</ref><ref>[http://www.officemuseum.com/copy_machines.htm Antique Copying Machines] from Office Museum</ref> and Zuccato applied for a patent in 1895 having stencils prepared by typewriting.<ref>Eugenic de Zuccato (1895) [https://patents.google.com/patent/US548116 Patent US548116]  Improvement for stencils from typewriting</ref>