Counterfeit currency attributed to North Korea raises deep concern due to its extremely high quality. Dubbed supernotes, their production process closely matches that of the genuine article, and the engraving is so fine it rivals that of the U.S. Bureau of Engraving and Printing.
Unlike most of the world's counterfeit currency, which is printed on offset presses or through digital processes, supernotes are printed on an intaglio press. The Bureau of Engraving and Printing uses Giori intaglio presses for the engraved portions of its bank notes, and an offset press for the background colors. Supernotes use the same technology. An intaglio press operates by applying ink on its plates and then wiping them clean, leaving ink only in the engraved lines. The plate is then pressed against the paper, depositing the ink in ridges. The result is raised printing that ordinary counterfeits can't duplicate. Supernotes have the same look and feel as U.S. currency.
North Korea purchased an intaglio press from the Swiss firm Giori in the mid-1970s. This fact is regarded as an indication that the nation has the technology available to print supernotes. Yet there have been significant advances in the field since the time of its purchase. Because certain auxiliary equipment is lacking, the model owned by the DPRK is considered by experts to be incapable of achieving the level of quality seen on supernotes. Not long after purchasing the Giori, North Korea defaulted on its loan after having made just two payments. For that reason, as well as due to U.S. pressure, Giori ceased shipping spare parts to North Korea many years ago, and according to one expert the North Korean printing press now stands idle.
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