Feel
Peruvian money doesn’t feel like normal paper, that’s because it s printed on 100% cotton. The cotton gives the banknote a noticeably different texture and also makes it more resistance than ordinary printer paper.
When handling a Peruvian banknote you should feel be able to feel the details of the printed images on the bills. Try passing your fingers over certain areas of the bill. On the old Peruvian Nuevo Sol banknotes this feature can be felt at the printed name of the Central Reserve Bank and the National Emblem. The new bills have raised details printed at the left and right of the head.
Be mindful that older bills will be more worn and therefore more difficult to identify using the “feel” technique alone.
Look
Look is probably the most effective technique. Start by holding the bill up to a light source. The area free of prints should feature a watermark. This is a basic security feature that most currencies worldwide possess and the Peruvian Nuevo Sol is no exception.
The watermark shows the image of the person whose face adorns that denomination. The watermark has multi-color and three-dimensional features giving you the impression of two (on the new bills three) distinct areas. Additionally, the watermark is formed by different thicknesses in the paper so it appears sharp and clear. On fake banknotes the watermark is printed on and tends to looks blurry.
The next visible security feature is the visible security stripe. If you hold any old Nuevo Sol banknote up to a light source you can read the word “Peru” on the security stripe. This feature is only visible on the new S/. 10, S/. 20 and S/. 50 bills.
Turn
The next security feature requires you to tilt your bill slightly. Hold the banknote horizontally in front of your eyes and move it up and down slowly. The denomination value (in the middle of old Peruvian Nuevo Sol bills and to the left of the image on the new bills) is printed with special ink (optical variable in) that changes color when slightly turned.
On new Peruvian Nuevo Sol bills you’ll see a hidden number and only on the new S/. 100 and S/. 200 bills moving fish when tilting.
Tips and Advice
It’s common to see people on the street verifying that the money they receive is in fact real, so don’t think you’ll look strange if you take the time to inspect your currency. Everywhere in Peru shopkeepers confiscate counterfeit bills and destroy them on the spot. It’s better to be safe than sorry.
One last thing, don’t be afraid to ask the person at the currency exchange house or the moneychanger on the street to replace a bill that you find suspicious. On the same note, don’t hesitate to ask for a different bill if a salesperson gives you an odd banknote. Be sure to ask for a different bill before you leave the establishment, other wise, they likely won’t exchange your money.