The History of Counterfeitable Inks

Before the us. Civil war, any printed money was made by like, an engraver,. and usually tan paper made of cloth or isen glass. They were like, let's get something hard to make so that people won't counterfeit iit. So successfully counterfeiting a bank note in those daysa you needed to be like, good at engraving, and then finding that weird paper that they make. Then in the mid 18 s, like the forty, 18 forties, sixties, photographic printing got more widespread. It was easier to counterfeit, even with multiple colored inks. The search for uncounterfeitable ink led them to use green patent green ink.

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