Information gotten from the Central bank of Nigeria (CBN) reveals that the ₦500 and ₦1000 notes are the most commonly counterfeited naira notes in the country.
A visual inspection of the print can reveal a lot about the origins of the paper. The images on genuine naira notes are very clear and the colours are extremely lifelike. Fake naira notes may appear darker or lighter due to the differences in printer equipment and ink, and their images are typically blurry because they are printed from low-quality computer files.
Look Out For The Ribbon
Every genuine naira note has a silver ribbon embedded from the top to the bottom of the banknote. Even in old, worn-out notes, it is still perfectly visible. In fact, if a naira banknote is very worn-out, you can even pull this silver ribbon out and see that it’s an actual metallic ribbon. Counterfeit naira notes also sometimes have a silver line, but it is painted with low-quality paint and will easily come off if you try to scratch it with your fingernail or a metal coin.
Checking of The Foil;
A silver ribbon is not the only metallic fragment to look for if you want to tell whether the naira note you are holding is genuine. This method works for ₦1000 notes. In the bottom right corner of the note, there should be a gold square with an image inside. No matter how much you scratch it when the note is genuine, you cannot remove it or even damage it unless you are using a knife or something equally sharp. With a fake naira note, however, it won’t take you a lot of effort to remove that gold foil square.
The Use Of Water;
Genuine naira notes use paint that cannot be dissolved with water, while the producers of counterfeit notes don’t have access to the same top-notch paint and equipment. That is why submerging a suspicious naira note in water or even just wetting a small part of it and then trying to rub off the paint will already tell you a lot about the origin of that note. Real naira notes won’t lose any of their colour, while fake banknotes will look like a watercolour painting after contact with water.
Some of the protection signs used by genuine naira banknotes are only visible to bank employees or professionals with special equipment. However, you can also get away with using a mercury bulb. Get the naira note in question under a working mercury bulb. On a genuine ₦1000 note, you will see “₦1000” written across it in a neon yellow hue. These symbols are not visible to a naked eye. This method also works for other naira banknotes, but the makers of fake notes don’t have the ability to print those invisible images yet