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<p>[QUOTE=&quot;gatzdon, post: 374634, member: 8247&quot;]The only thing that sticks out like a sore thumb is the assumption that no one else is capable of making a dry intaglio printing press.&nbsp; It doesn&#039;t even have to be dry, but dry is what makes the ink stick out so well.</p><p><br /></p><p>Intaglio printing has been used for well over a hundred years.&nbsp;&nbsp; One does not have to print 32 notes at a time.&nbsp; 4 notes at a time with a manual screw press would produce a passable note.</p><p><br /></p><p>I would imagine that error notes are a good way to help develop the printing plates quicker.&nbsp; Find your self a note with a missing overprint and another with a missing second printing, and you are that much closer to using photography and chemical etching to making a printing plate.&nbsp; Same with a missing first printing to get the reverse nailed down.&nbsp; Remember, the background colors are printed using offset printing.</p><p><br /></p><p>Now, if the inks have a chemical marker in them, there would be little to no value in attempting to duplicate that, and therefore, if the markers are present, I would definitely re-evaluate the supply chain of the ink to find out how someone is managing to secure the original.&nbsp; If someone was tapping into the some sort of official supply for the marked ink, I would hope they are smart enough to &quot;mix&quot; as much of various inks obtained so as to obfuscate the source as much as possible.</p><p><br /></p><p>Remember, for years, college kids have been investigating various naturally occuring substances and figuring out how to make them synthetically.&nbsp; I don&#039;t see why the same couldn&#039;t be done with the ink used for printing.&nbsp; I would think that the one marker that would help to deter that technique would be to add some element or molecule that was outrageously expensive to make or obtain (like trace amounts of Rhodium or something like that).[/QUOTE]</p><p><br /></p>

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