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Siderography is a mechanical process developed by Jacob Perkins in the early 1800s enabling the unlimited reproduction of engraved steel plates. The process enables the transfer of an impression from a steel plate to a steel cylinder in a . An individual who engraves steel plates was known as a siderographist in the mid 1800s, and a siderographer by the early 1900s. By the 1930s, a was operated by a siderographer, who would manipulate a "system of compound levers" on the press to regulate the amount of pressure exerted on the transfer rolls.

Attributes	Values
rdfs:label	Siderography (en)
rdfs:comment	Siderography is a mechanical process developed by Jacob Perkins in the early 1800s enabling the unlimited reproduction of engraved steel plates. The process enables the transfer of an impression from a steel plate to a steel cylinder in a . An individual who engraves steel plates was known as a siderographist in the mid 1800s, and a siderographer by the early 1900s. By the 1930s, a was operated by a siderographer, who would manipulate a "system of compound levers" on the press to regulate the amount of pressure exerted on the transfer rolls. (en)
foaf:depiction
dct:subject	Engraving Relief printing
Wikipage page ID	45198325 (xsd:integer)
Wikipage revision ID	1020115835 (xsd:integer)
Link from a Wikipage to another Wikipage	Engraving United States dollar Cornell University Press Basil Hunnisett London Bank of England Trade union Washington, D.C. AFL–CIO France United States Government Publishing Office Printmaking Jacob Perkins Relief printing Assignat University of Maryland dbr:Rolling_press dbr:Transfer_press
Link from a Wikipage to an external page	http://digital.lib.umd.edu/archivesum/actions.DisplayEADDoc.do%3Fsource=MdU.ead.histms.0036.xml%7Ctitle=International https://archive.org/details/steelengravedboo0000hunn https://books.google.com/books%3Fid=gJX1buNKHj0C https://archives.lib.umd.edu/repositories/2/resources/1424
sameAs	Siderography Siderography
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thumbnail	wiki-commons:Special:FilePath/Cervo118.jpg?width=300
has abstract	Siderography is a mechanical process developed by Jacob Perkins in the early 1800s enabling the unlimited reproduction of engraved steel plates. The process enables the transfer of an impression from a steel plate to a steel cylinder in a . An individual who engraves steel plates was known as a siderographist in the mid 1800s, and a siderographer by the early 1900s. Perkins developed the use of steel plates in banknote production in 1805, and these were more resistant to wear from printing than copper plates. Siderography enabled the steel plates to be copied with greater frequency. It was first used for printing banknotes of the United States dollar. Counterfeiting had become an important issue in Europe in the late 1700s and early 1800s, primarily because the banknotes were produced with no standardized process or design, using readily available technology and techniques familiar to over 10,000 copper engravers. France offered a prize contest in the 1790s as a result of the counterfeiting of assignats. One of the submitted proposals for this contest had been the use of siderography, though it was not viable at the time. The English banknotes of that era came to be known as "filthy rags", and in 1817, the Bank of England advertised a contest for the submission of a process to develop counterfeit-resistant banknotes, for which the winning entry would receive £20,000. Perkins moved to England in 1818, and made preparations for equipment, machinery, and his workmen to follow him. He submitted his proposal for the use of siderography in banknote production, but the idea was not well received by the Bank of England. Despite this, the idea gained traction, and by the end of the 1920s siderography was in use by over 200 banks in the United Kingdom. By the 1930s, a was operated by a siderographer, who would manipulate a "system of compound levers" on the press to regulate the amount of pressure exerted on the transfer rolls. (en)
prov:wasDerivedFrom	wikipedia-en:Siderography?oldid=1020115835&ns=0
page length (characters) of wiki page	5441 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Siderography
is Link from a Wikipage to another Wikipage of	Charles Heath Index of philatelic articles 1899 Erik van Blokland 1937 Canadian banknote series Alex Currie Siderographer Siderographist International Association of Siderographers
is Wikipage redirect of	Siderographer Siderographist International Association of Siderographers
is foaf:primaryTopic of	wikipedia-en:Siderography

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