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<p>[QUOTE=&quot;Dave M, post: 831892, member: 17469&quot;]I will toss out an idea. I am no expert on errors, but this appears to be an over-inking situation, followed by a failure to clean the plate. For an intaglio printing, the banknote design is recessed into the plate. Ink is then applied to the plate, and wiped off the surface, with the intent on leaving ink only in the engraved lines. Paper is then pressed against the plate, and the ink should be left on the paper only where the design intended. In this case, those vertical lines look to me to be ink that was dragged along the plate while it was being wiped clean, and just didn&#039;t all come off. It&#039;s clear from the close-ups that there was too much ink being applied as well.</p><p><br /></p><p>Dave[/QUOTE]</p><p><br /></p>

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