There are strict standards and regulations in the production of the world's most popular coins, from ink color selection and printing to security, but not everyone knows.
The history of the United States witnessed a lot of different $ 100 dollars with security features being increasingly enhanced.
Because the US Federal Reserve (FED) continually refreshes the circulation of paper money in the market, millions of old, damaged or out-of-standard dollars are regularly revoked.
The US Federal Reserve officially circulated a new $ 100 denomination on October 8 with many advanced safety features.