From the US government they have published a 4 simple step guide to learn how to detect counterfeit dollars.
The document has been prepared by the Federal Reserve and allows verification with very easy methods, Ticket security measures.
4 ways to spot counterfeit dollars
- Check in light: “Lift the bill up to the light to see a safety thread included on denominations of $5 and up. The thread is embedded in a different position on each denomination and glows a different color when held in a UV light.”
- Touch the paper: “Run your finger over the bill. It should have a slightly rough texture as a result of the printing process and the unique texture of the paper.”
- See with zoom: The numbers on the front and back plates identify the printing plates used to print each side of the note. The front plate number is on the front of the bill and the back plate number is on the back of the paper.
- Bill tip: “Tilt the bill to see the ink on the numbers in the lower right corner and the bell on the inkwell change from copper to green. The color-changing ink is available in denominations of $10 and up.”
On the other hand, from the United States Federal Reserve, they point out that dollar bills have a three-dimensional security band: “The three-dimensional security band of a $100 bill is woven into the paper. You see images of bells and hundreds moving back and forth and up and down when you tilt the bill.”
They further noted: “Microprint is a feature that is offered in many places in denominations of $5 and up. These small print words correspond to the category or are phrases such as “United States of America” or “USA” or “E PLURIBUS UNUM´, which means “many, one” in Latin.