The US Federal Reserve has issued a new hi-tech $100 banknote comprising several new security features.
It includes a blue 3D security ribbon and a bell and inkwell logo that authorities say are particularly difficult to replicate. These combine with traditional security features, such as a portrait watermark and an embedded security thread that glows pink under ultraviolet light
The redesigned banknote, which features a portrait of US founding father and scientist Benjamin Franklin, also includes raised "intaglio" printing that gives the notes a distinctive feel, and microprinted words that are difficult to read without magnification.
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