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Security thread

When holding the 100-, 200-, 500- and 1000-peso banknotes against the light, you can see a thread of approximately one millimeter (width) that crosses the note vertically. This thread is known as security thread and is manufactured directly onto the cotton-paper substrate.

Security thread in 200-peso banknote

 

Examination against the light

This feature is detected when holding the banknote against the light.