US Notes

Washed Notes: How Criminals Bleach Low-Denomination Bills to Fake High-Value Currency and What Collectors Must Know

Washed notes, created by chemically stripping genuine low-denomination bills and reprinting them as high-denomination currency, represent one of the most deceptive counterfeiting techniques ever devised. Understanding the forensic tells, historical context, and authentication methods behind washed notes is essential knowledge for every serious currency collector.

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The History of American Currency Counterfeiting: From Colonial Woodcuts to 21st Century Digital Fakes

American counterfeiting stretches back more than three centuries, shaping the very design of every note in your collection. Understanding this ongoing arms race between forgers and the Treasury helps collectors identify genuine notes, spot alterations, and appreciate why certain security features define a series.

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Guardians of the Greenback: The Secret Service’s Currency Protection Role From 1865 to the DHS Era

Long before presidential protection became its defining mission, the United States Secret Service was founded specifically to combat the epidemic of counterfeit currency that threatened to collapse the post-Civil War economy. Understanding this history gives collectors a richer context for the notes they hold, the security features those notes carry, and the legal frameworks that govern reproduction of US currency today.

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